巻号一覧
87 巻, 11 号
選択された号の論文の27件中1～27を表示しています
- |<
- <
- 1
- >
- >|
-
宇野 準, 船引 博子, 入江 明, 吉村 嘉男1967 年 87 巻 11 号 p. 1293-1297
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーAmino acid esters, nucleosides, and vitamin B6 were reacted with nicotinoyl chloride and N-nicotinoyl derivatives of amino acids and nicotinic acid esters of nucleosides and vitamin B6 were prepared.抄録全体を表示PDF形式でダウンロード (547K) -
亀谷 哲治, 早坂 鉄太郎, 気賀沢 和雄1967 年 87 巻 11 号 p. 1298-1303
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーIn the reaction between secondary amines and methyl carboxylate that between secondary amines like 1, 2, 3, 4-tetrahydroisoquinoline (I) and N-methylbenzylamine (II) and methyl ester of aliphatic carboxylic acids like dimethyl oxalate (VIII) and dimethyl fumarate (IX) afforded amides as the main product, with by-product formation of tertiary amines and quarternary ammonium compounds. On the contrary, in the reaction of I and II with methyl esters of aromatic carboxylic acids like methyl o-nitrobenzoate (VI) and methyl benzoate (VII), and of 1, 2, 3, 4-tetrahydroquinoline (III), N-methylaniline (IV), and diphenylamine (V) with VIII and IX, the main products were tertiary amines and quarternary ammonium compounds, and amides were obtained as a by-product. It was also found that the reaction of III and IV with VII afforded only the tertiary amines.抄録全体を表示PDF形式でダウンロード (638K) -
山名 月中, 水上 勇三1967 年 87 巻 11 号 p. 1304-1308
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーAn intermediate product of the degradative reaction of chlorothiazide (I) in acid solution was isolated. The chemical structure of this product was clarified as 5-chloro-2, 4-disulfamoylformanilide (IV). In pH 2.4 phosphate buffer, the conversion of chlorothiazide (I) to 4-amino-6-chloro-m-benezenedisulfonamide (III) was represented as the consecutive reactions in the following scheme : [numerical formula]抄録全体を表示PDF形式でダウンロード (549K) -
岡野 定輔, 上釜 兼人, 伊沢 優, 佃 十尚1967 年 87 巻 11 号 p. 1309-1314
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーSpectrophotometric studies were made on the interactions between 4-nitropyridine 1-oxide (4-NPO) and aniline derivatives, and participation of n-π* type charge-transfer in the complex formation, wherein amino moiety of aniline acts as the electron donor and 4-NPO as electron acceptor, was deduced from the following results. (1) New absorption bands which appeared in the visible region of the difference spectra of mixed solutions of 4-NPO and aniline derivatives were characteristic of charge-transfer complexes in that they shifted toward red with increasing polarity of the solvents. (2) From the gradient of the straight line obtained by plotting Z-values of solvents versus transition energies of 4-NPO-aniline complex in various solvents, it was clarified that the new absorption bands were assignable to n→π* transitions. (3) The new absorption bands were susceptible to pH changes and diminished in the acid range, indicating participation of n electron of amino group of aniline in the complex formation. (4) Examination of ε, K and ΔH values of 4-NPO-aniline derivative complexes revealed that methylation of amino group of aniline had a steric hindrance effect upon complex formation.抄録全体を表示PDF形式でダウンロード (584K) -
岡野 定輔, 合屋 周次郎, 松本 仁1967 年 87 巻 11 号 p. 1315-1321
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーDisplacement of di-and trichloropyrimidines with potassium fluoride in -N, N-dimethylformamide under milder conditions afforded corresponding fluoropyrimidine derivatives in good yields, wherein the reaction products were, in most cases, separated from solvents by steam distillation. The di-and trifluoropyrimidines were further treated with alcoholic ammonia to yield amino-fluoro compounds, and with sodium benzyloxide followed by reduction over palladium carbon to yield hydroxy-fluoro compounds. Comparison of ultraviolet absorption spectra of the fluoropyrimidine derivatives with those of corresponding chloro compounds revealed that conversion of substituent from chlorine to fluorine shifted the absorption bands about 10∼20 mμ toward blue. The derivatives of pyrimidine (Py) newly described are as follows : 2, 4, 6-trifluoro-5-methyl-Py (IIb), 2, 4-difluoro-5, 6-dimethyl-Py (IId), 4, 6-difluoro-2-methyl-Py (IIe), 4, 6-difluoro-2, 5-dimethyl-Py (IIf), 4, 6-difluoro-5-methyl-Py (IIg), 4-amino-2, 6-difluoro-5-methyl-Py (IIIb), 4-amino-2-fluoro-6-methyl-Py (IIIc), 4-amino-2-fluoro-5, 6-dimethyl-Py (IIId), 4-amino-6-fluoro-2-methyl-Py (IIIe), 4-amino-6-fluoro-2, 5-dimethyl-Py (IIIf), 4-amino-6-fluoro-5-methyl-Py (IIIg), 2-amino-4, 6-difluoro-5-methyl-Py (IVb), 2-amino-4-fluoro-6-methyl-Py (IVc), 4-benzyloxy-6-fluoro-2-methyl-Py (Ve), 4-benzyloxy-6-fluoro-2, 5-dimethyl-Py (Vf), 4-benzyloxy-6-fluoro-5-methyl-Py (Vg), 4-fluoro-6-hydroxy-2-methyl-Py (VIe), 4-fluoro-6-hydroxy-2, 5-dimethyl-Py (VIf), and 4-fluoro-6-hydroxy-5-methyl-Py (VIg).抄録全体を表示PDF形式でダウンロード (762K) -
加藤 鉄三, 坂本 尚夫1967 年 87 巻 11 号 p. 1322-1325
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーReaction of three kinds of ketimine-type compounds, i.e. benzhydrilideneimine (Va), 1, 2-diphenylethylideneimine (Vb), and 1-phenylpropylideneimine (Vc), with diketene was carried out and oxazine-type compounds were obtained in a good yield, respectively forming 3, 4-dihydro-2, 2-diphenyl-6-methyl-4-oxo-2H-1, 3-oxazine (VIa), 3, 4-dihydro-2-benzyl-6-methyl-4-oxo-2-phenyl-2H-1, 3-oxazine (VIb), and 3, 4-dihydro-2-ethyl-6-methyl-4-oxo-2-phenyl-2H-1, 3-oxazine (VIc). Hydrolysis of these products with 10% hydrochloric acid resulted in the formation of benzophenone, acetone, carbon dioxide, and ammonium chloride from VIa. Reaction of with aniline gave N-benzhydrylideneaniline (VIIa) and acetacetanilide (VIII).抄録全体を表示PDF形式でダウンロード (446K) -
岡田 寿太郎, 森田 修之, 松田 芳久, 竹繩 忠臣1967 年 87 巻 11 号 p. 1326-1333
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーAutoxidation of D-glucose to D-gluconic acid was examined in heterogeneous liquid phase at 40°, in the presence of Pd-BaSO4 catalyst. The reaction was carried out using continuously stirred tank reactor, semi-batch reactor, and multi-stage contactor of gas-liquid counterflow type. Based on the rate equation of reaction and the equation of decrease of catalyst activity presented in this article, mass balance equation for D-glucose was obtained in steady state at n-th stage of multi-stage contactor, as follows : [numerical formula] The values calculated from this equation agreed well with experimental results.抄録全体を表示PDF形式でダウンロード (850K) -
下村 裕子, 重弘 美智子, 粟山 悦子, 藤田 路一1967 年 87 巻 11 号 p. 1334-1341
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーComparative anatomical and histochemical studies were made on some physiological species of hemp (Cannabis sativa L.), as shown in Table I. On the other hand, spodograms of hemp and tobacco leaves (Fig. 5) were examined, and the result obtained was follows : 1) Foliage leaves, bracts on inflorescence of female plant, and bractlets on each flower of material No. (1) (Minami-oshihara No. 1), which is typically cultivated in Japan, were examined. Four types of hair, such as bristle, glandular, disk-shaped glandular, and downy hair, are characteristic, especially the disk-shaped glandular hair of type-2 and 3 have very peculiar shape and other features (Table II, Fig. 1). Examination was also made for histochemical color reactions of the organs including oleo-resin (Table III). 2) Internal characters of material No. (2) (wild species from Hokkaido area), No. (4) (wild sp. from Kyusyu area), and No. (5) (American cannabis) are practically similar to No. (1), but those of material No. (3) (wild sp. from Kanto area) and No. (6) (Ganjah) are different. 3) It was confirmed that even if the materials of Cannabis sativa L. are burnt to ash, it is easy to discriminate them from tobacco leaves by the presence of bristle hairs and also rosette aggregates of calicium oxalate in the former spodogram (Fig. 5, 1∼5).抄録全体を表示PDF形式でダウンロード (1704K) -
林 英作, 赤堀 幸男, 山本 豊1967 年 87 巻 11 号 p. 1342-1345
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリー1-Nitroisoquinoline (I) is obtained by the application of sodium nitrite to 1-iodoisoquinoline (II) in dimethyl sulfoxide (Chart 1). The ring-carbon at 1-position in I shows nucleophilic activity by the electronic effect of the ring nitrogen and the nitro group, and the nitro group is substituted with various substituents by reaction with nucleophilic reagents (Chart 2), but the ring-carbon at 4-position also becomes a nucleophile active according to the kind of reagents used. For example, when I is heated with sodium phenyl sulfide in benzenethiol, the phenylthio group is introduced into the 4-position of I, with concurrent reduction of the nitro group, to form 1-amino-4-(phenylthio) isoquinoline (X). Benzenethiol is assumed to take part in the reduction of the nitro to amino group, and diphenyl disulfide is obtained as one of the reaction products (Chart 3). Finally, N-oxidation of I was attempted and I was recovered without the formation of 1-nitroisoquinoline 2-oxide (XI). It was considered that this was due to (1) decrease in the basicity of the ring-nitrogen by the electronic effect of the nitro group, and (2) steric interference of the nitro group on the ring nitrogen.抄録全体を表示PDF形式でダウンロード (541K) -
山本 勇麓, 熊丸 尚宏, 林 康久, 登 芳男1967 年 87 巻 11 号 p. 1346-1350
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーA new spectrophotometric method is proposed for the determination of dehydroacetic acid (DHA). The present method is based on solvent extraction into nitrobenzene of the ionpair formed between tris (1, 10-phenanthroline) iron (II) and the anion of DHA. The maximum absorbance of the extract in the organic phase is at 516 mμ. In order to obtain optimum conditions for the determination of DHA, various factors were studied. The maximum and constant extraction is obtained in the range of pH 8.5∼13. Calibration curve was found to be linear for the range (2.4×10-5∼2.88×10-4M) of DHA concentration tested in aqueous solution. The effect of other food additives on this method was investigated. Saccharose, glycine, sodium citrate, starch, and sodium chloride do not interfere with the determination in a 10-to 100-fold molar excess. A small amount of saccharine sodium, salicylic acid, sodium cyclamate, and coloring matters gives a positive error. The proposed method has higher sensitivity and better accuracy.抄録全体を表示PDF形式でダウンロード (559K) -
戸田(佐々木) 紘子1967 年 87 巻 11 号 p. 1351-1358
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーThe reaction of 4-aminotropolone with diketene gave two unknown compounds (V and VI), which had the same analytical formula, C15H13O5N. The structure of V was determined as 3-acetyl-4-hydroxy-6-methyl-1-(tropolon-4'-yl)-2 (1H)-pyridone from its oxidative degradation and its NMR and IR spectra. Studies on NMR, UV, and IR spectra of VI and its analogous compounds deduced its structure to be N-(tropolon-4'-yl)-2, 6-dimethyl-4-oxo-4H-pyran-3-carboxamide. The synthesis of VI from 4-aminotropolone and p-nitrophenyl 2, 6-dimethyl-4-oxo-4H-pyran-3-carboxylate confirmed its structure. Furthermore the reaction of 2-aminotropone with diketene was tried, and the structures of two products were determined.抄録全体を表示PDF形式でダウンロード (706K) -
大木 貞雄, 島田 裕子, 杉本 和朗1967 年 87 巻 11 号 p. 1359-1363
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーIn order to examine their pharmacological action, 2-spiro-substituted 3-oxa-1-azabicyclo-[4, 4, 0] decanes (IV to X) were synthesized from 2-piperidineethanol and cyclic ketones.抄録全体を表示PDF形式でダウンロード (525K) -
西海枝 東雄, 谷口 陽一1967 年 87 巻 11 号 p. 1364-1370
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーPerkin reaction of thiophene-aldehydes and phenylacetic acid was attempted in the presence of a triethylamine catalyst. 2-Thiophenecarboxaldehyde (IV) afforded α-phenyl-2-thiopheneacrylic acid (V) and α-phenyl-2-thiopheneacrylic anhydride (VI) ; 5-nitro-2-thiophenecarboxaldehyde (VIII) afforded α-phenyl-5-nitro-2-thiopheneacrylic acid (VII) ; 2-thiopheneacrolein (XIV) afforded 2-phenyl-5-thienyl-2, 4-pentadienoic acid (XII) ; 5-nitro-2-thiopheneacrolein afforded 2-phenyl-5-(5-nitro-2-thienyl)-2, 4-pentadienoic acid (XVI) and 2-phenyl-5-(5-nitro-2-thienyl)-2, 4-pentadienoic anhydride. α-Bromo-5-nitro-2-thiopheneacrolein (XVIII) afforded, according to the reaction temperature, 4-bromo-(5-nitro-2-thienyl)-2-phenyl-2, 4-pentadienoic acid (XIX) or 4-(5-nitro-2-thienylidene)-4-hydroxy-2-phenylcrotonic acid γ-lactone (XX).抄録全体を表示PDF形式でダウンロード (690K) -
木村 雄四郎, 滝戸 道夫, 小泉 清太郎1967 年 87 巻 11 号 p. 1371-1373
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーFrom the heartwood of Picrasma ailanthoides PLANCHON (Simarubaceae), a new alkaloid, nigakinone, was isolated as yellow needles or plates, m.p. 224∼225°along with 4, 5-dime-thoxycanthin-6-one. The structure of nigakinone was established as 4-methoxy-5-hydroxy-canthin-6-one because its monomethyl ether was identical with 4, 5-dimethoxycanthin-6-one and it was converted to methyl α-carboline-1-carboxylate by oxidation.抄録全体を表示PDF形式でダウンロード (422K) -
佐方 易忠, 足立 一彦, 赤堀 幸男, 林 英作1967 年 87 巻 11 号 p. 1374-1381
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリー3-(Trimethylsilyl) pyridine 1-oxide (I) was synthesized according to the reaction route presented in Chart 1, and some chemical properties of this compound were examined. Reaction of 1-methoxy-3-(trimethylsilyl) pyridinium salt and potassium cyanide : Reaction of I and methyl sulfate gave 1-methoxy-3-(trimethylsilyl) pyridinium methosulfate (V) which was reacted with aqueous solution of potassium cyanide at 20°and 3-(trimethylsilyl) isonicotinonitrile (VI), 3-(trimethylsilyl) picolinonitrile (VII), and 5-(trimthylsilyl) picolinonitrile (VIII) were formed in approximately 2.5 : 1 : 1 ratio (Chart 2). Structural determination of VI, VII, and VIII was made through organochemical method (Chart 3) and from NMR spectra (Fig. 1 and Table I). NMR spectral examination was also made on 3-(trimethylsilyl) isonicotinamide (XI), 3-(trimethylsilyl) picolinamide (IX), and 5-(trimethylsilyl) picolinamide (X), respectively derived from VI, VII, and VIII. Reaction of I and acetic anhydride : A solution of I in acetic anhydride was refluxed and hydrolysis of the product afforded 5-(trimethylsilyl)-2 (1H)-pyridone (XVII) and 3-(trimethylsilyl)-2 (1H)-pyridone (XVIII) in approximately 1.5 : 1 ratio. XVII and XVIII were identified with authentic products synthesized by another route (Chart 4). Reaction of I and phosphoryl chloride : The products obtained from the reaction of I and phosphoryl chloride were difficult to separate and purify. The product was treated as shown in Chart 5 and 3-(trimethylsilyl)-4 (1H)-pyridone (XIX) and 3-(trimethylsilyl)-2 (1H)-pyridone (XVIII) were obtained in approximately 3.2 : 1 ratio and were identified with authentic samples obtained by a different route (Chart 4).抄録全体を表示PDF形式でダウンロード (861K) -
金子 秀彦, 成戸 俊介, 池田 登1967 年 87 巻 11 号 p. 1382-1386
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーSix alkaloids were isolated from the tertiary phenolic base fraction of Korean Corydalis (Corydalis Nakaii ISHIDOYA). Among them, d-isocorydine, l-tetrahydrocolumbamine, l-scoulerine, and d-norisocorydine were identified by direct comparison with authentic samples. The other two alkaloids seemed likely to be l-teticuline and corydine from their several chemical behaviors.抄録全体を表示PDF形式でダウンロード (602K) -
Guanethidine類似化合物の薬理学的研究(第5報) : 2,3,4,5-Tetrahydro-1H-3-benzazepine-3-carboxamidine Sulfateの交感神経遮断作用小澤 光, 大槻 勲夫1967 年 87 巻 11 号 p. 1387-1393
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーPharmacological activity of 2, 3, 4, 5-tetrahydro-1H-3-benzazepine-3-carboxamidine sulfate (GQ-2) and following results were obtained. GQ-2 suppresses the contraction of nictitating membrane of the pre-and post-ganglionic fiber of cervical sympathetic nerve in urethane-anesthetized cat. This suppression is recovered by the intravenous injection of amphetamine but GQ-2 failed to suppress the contraction of nictitating membrane caused by amphetamine. GQ-2 also suppressed the elevation of blood pressure by electrical stimulation of the great splanchnic nerve and that by carotid occlusion. On the other hand, fall of blood pressure by electrical stimulation of the peripheral end of vagus nerve was not suppressed. GQ-2 abolished the movement of the isolated ileum produced by electrical stimulation to the mesenteric nerve. neurone blocking action of GQ-2 in urethane-anesthetized cat was about 0.4 time that of guanethidine. GQ-2 sometimes showed a sympathomimetic action but this was extremely weak. GQ-2 also increased the action of tyramine as well as of norepinephrine on nictitating membrane and blood pressure in a cat. Potentiation of tyramine was considered to be the interference of monoamine oxidase by GQ-2 since the action of reserpine was reversed after administration of GQ-2.抄録全体を表示PDF形式でダウンロード (875K) -
犬伏 康夫, 石井 永, 安井 凡平, 原山 尚, 細川 満里子, 西野 隆一, 中原 雄二1967 年 87 巻 11 号 p. 1394-1403
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーComparative examinations were made on the bases contained in Lycopodium serratum THUNB. var. serratum forma serratum (=Lycopodium serratum THUNB. var. thunbergii MAKINO) collected in Mount Hira and Lycopodium serratum THUNB. var. serratum forma intermedium NAKAI collected at Oinosaka, Kyoto city. Results are summarized in Table I.抄録全体を表示PDF形式でダウンロード (1151K) -
岡田 寿太郎, 寺田 幸正1967 年 87 巻 11 号 p. 1404-1406
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーA photochemical reaction of cyclohexanone (I) was tried in the presence of chloroacetone or hydrogen chloride. The product, C12H18O b. p88 156∼163°, coincided with 2-(1-cyclohexenyl) cyclohexanone (II). Similarly, 2-methyl-(V), 3-methyl-(VI), and 4-methylcyclohexanone (VII) respectively gave 2-methyl-6-(2-methyl-1-cyclohexenyl) cyclohexanone (VIII), 5-methyl-2-(5-methyl-1-cyclohexenyl) cyclohexanone (IX) and 4-methyl-2-(4-methyl-1-cyclohexenyl) cyclohexanone (X) by UV-illumination in the presence of HCl. Their structures were discussed from NMR and mass spectra.抄録全体を表示PDF形式でダウンロード (391K) -
亀谷 哲治, 山中 徹, 佐藤 満生1967 年 87 巻 11 号 p. 1407-1410
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーMytomycin-C (I) is an antibiotic obtained from Streptomyces caespitosus by Hata and others in 1955, and its planer structure was determined by Webb and others in 1962, but its total synthesis has not been accomplished as yet. In order to synthesize the fundamental skeleton (XIX) of Mitomycin-C, examinations were made to prepare a compound with an amino group in 7-position. The compound (V) synthesized by the method described in the literature was derived to VII by the Reissert method. An attempted indole cyclization of VII to VIII was unsuccessful and the product thereby obtained was found to be IX. IX was hydrolyzed to VI, the amino group in the latter was benzoylated to X, and the Reissert reaction of X gave, not the objective XI, but VI, identical with the product from V. VI was therefore derived to the phthalimide compound (XIII) and its Reissert reaction was carried out but the starting compound was recovered. In other words, an attempt to obtain an indolecarboxylic acid with an amino group in the 5-position of indole directly from the derivatives of VI failed completely. A compound (XVI) synthesized by the method described in literature was esterified and the pyrrolo [1, 2-a] indole ring was prepared. Condensation of XVII and methyl acrylate in the presence of alkali gave the 1-keto ester compound (XVIII) whose decarboxylation afforded XIX. Introduction of an amino group into 7-position of XIX did not materialize but the fundamental skeleton (XIX) of Mitomycin-C was obtained in a good yield.抄録全体を表示PDF形式でダウンロード (545K) -
亀谷 哲治, 鈴木 敏夫, 気賀沢 和雄1967 年 87 巻 11 号 p. 1411-1413
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーIt is well known that a useful pharmacological action is found in 3-aryloxy-1-carbamoxy-2-hydroxypropanes. In order to examine correlation to this group of compounds, some Schiff bases were prepared. Starting with 7-(2, 3-dihydroxypropyl) theophylline (III), a derivative of theophylline, it was derived to dioxolanone compound (IV), then to the carbamoxy (V) and hydrazide (VI), and the latter was condensed with anisaldehyde, benzaldehyde, vanillin, and protocatechuic aldehyde, from which the Schiff bases, VII, VIII, IX, and X were obtained. Their pharmacological activity is now being examined.抄録全体を表示PDF形式でダウンロード (408K) -
竹本 常松, 小川 俊太郎, 西本 喜重, 在原 重信, 武衛 和雄1967 年 87 巻 11 号 p. 1414-1418
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーEthanolic extracts of crude drugs and plants were examined for a possible metamorphosis activity in insects, by observing the state of pupation, using the free abdomen of flies. The results are summarized in Tables I to V. Among the crude drugs, bezoar as well as the leaves of taxum and mulberry showed such activity. Among the plants, no marked activity was found in mushrooms and sea-weeds. Among the ferns some activity was found in Blechnum nipponicum, Athyrium nipponicum, A. squamigerum, Lastrea japonica, Rumohra miqueliana, and Dryopteris chinensis. In higher plants, Podocarpus nakaii and Achyranthes spp. showed the activity, and so did also Taxus cuspidata var. nana, Podocarpus nagi, Torreya nucifera, Akebia quinata, Amaranthus spinosus, A. magnostanus, and A. viridis.抄録全体を表示PDF形式でダウンロード (545K) -
井上 博純1967 年 87 巻 11 号 p. 1419-1422
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーPhenyl ether of eugenol was reduced with metallic sodium in liquid ammonia to give 1-(m-methoxyphenyl)-1-propene (III). Synthesis of 1-(m-methoxyphenyl)-2-propanone (VI) from (III) via 1-(m-methoxyphenyl)-2-nitro-1-propene was examined. The reaction of performic acid with III followed by treatment with acid also gave VI, though in an unsatisfactory yield.抄録全体を表示PDF形式でダウンロード (530K) -
宇都宮 庸一1967 年 87 巻 11 号 p. 1422-1424
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーIt has been found that betaines, inner salts of quaternary ammonium amino acids, could not be absorbed by strongly basic anion exchange resin (OH form) and weakly acidic cation exchange resin (H form). With these properties of betaines, extra pure free betaines can be easily prepared in almost quantitatively from betaine hydrohalides prepared by the action of trimethylamine on halogeno-carboxylic acids or by methylation of amino acids.抄録全体を表示PDF形式でダウンロード (501K) -
富田 真雄, 青柳 良明1967 年 87 巻 11 号 p. 1425-1426
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーConversion of cepharanthine (II) to obaberine (O-methyloxyacanthine) (IV) was achieved by cleavage of methylenedioxy grouping of cepharanthine followed by O-methylation with diazomethane.抄録全体を表示PDF形式でダウンロード (332K) -
入谷 信彦, 宮原 武恒, 矢野 恵子, 北野 幸子1967 年 87 巻 11 号 p. 1427-1429
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーChelatometric titration was examined for analysis of officinalis containing aluminum and the back titration with zinc salt solution is recommended. The procedure is as follows : To the sample solution containing ca. 30mg. of Al at pH 3, an excess of 0.05M Na2EDTA solution is added and boiled gently for 5 minutes, when cooled, the excess of Na2EDTA is titrated with 0.05M ZnCl2 solution at pH 5.5, using Xylenol Orange as the indicator. This method was easier to carry out and gave better results than the usual gravimetry.抄録全体を表示PDF形式でダウンロード (452K) -
木村 雄四郎, 滝戸 道夫, 樋渡 惟訓1967 年 87 巻 11 号 p. 1429-1430
発行日: 1967/11/25
公開日: 2008/05/30
ジャーナル フリーA flavone pigment vitexicarpin was isolated, from the fruits of Vitex rotundifolia LINNE fil. (Verbenaceae). It was identified with casticin, 5, 3'-dihydroxy-3, 6, 7, 4'-tetramethoxyflavone (II) by mixed fusion and I.R. spectra.抄録全体を表示PDF形式でダウンロード (371K)
- |<
- <
- 1
- >
- >|