All issues
Spotlight Archives
Spotlight Archives
Volume 32, Issue 1
Displaying 1-9 of 9 articles from this issue
- |<
- <
- 1
- >
- >|
-
Hidemasa TAKAYA, Ryoji NOYORI1974Volume 32Issue 1 Pages 2-19
Published: January 01, 1974
Released on J-STAGE: November 13, 2009
JOURNAL FREE ACCESSDownload PDF (2360K) -
Koichi HIRAI, Yukichi KISHIDA1974Volume 32Issue 1 Pages 20-32
Published: January 01, 1974
Released on J-STAGE: April 23, 2010
JOURNAL FREE ACCESSDownload PDF (1320K) -
Kazuo TAN, Toshio MATSUDA, Yoshiyuki TAKADA1974Volume 32Issue 1 Pages 33-36
Published: January 01, 1974
Released on J-STAGE: November 13, 2009
JOURNAL FREE ACCESSReduction of 6-cyanohexanoic acid, obtained by the reaction of ε-caprolactone with alkali metal cyanide, was studied with cobalt or nickel catalysts. Cobalt catalysts such as Raney Co and Urushibara Co gave 7- aminoheptanoic acid in high yields in dilute ammonia solutions. On the other hand nickel catalysts gave much more iminodiheptanoic acid and much less ω-amino acid. In addition, separation of nickel ion generated in the reaction was more difficult than that of cobalt ion. Some other ω-amino acids were obtained by the above-mentioned operation.View full abstractDownload PDF (714K) -
Yoshio IMAI, Takeyoshi TAKAHASHI1974Volume 32Issue 1 Pages 37-41
Published: January 01, 1974
Released on J-STAGE: April 23, 2010
JOURNAL FREE ACCESSTrimellitic thioanhydride (2) was synthesized by the reaction of trimellitic anhydride (1) with sodium sulfide. Treatment of (2) with thionyl chloride gave 4-chloroformylphthalic thioanhydride (3a). The reaction of (3a) with phenol and thiophenol afforded 4- (phenoxycarbonyl) phthalic thioanhydride (3b) and 4- (phenyl-thiocarbonyl) phthalic thioanhydride (3c), respectively. The reaction of (3a) with aniline yielded 4- (N'- phenylcarbamoyl) -N-phenylphthalimide (6) via 4- (N-phenylcarbamoyl) phthalic thioanhydride (4). The reaction of aniline with (3b) gave 4- (phenoxycarbonyl) -N-phenylphthalimide (5b), whereas that with (3c) afforded (6) via 4- (phenylthiocarbonyl) -N-phenylphthalimide (5c). These results suggest that the reactivity of thioanhydride and other carboxyl derivatives toward nucleophiles decreases in the following order :
C=O-Cl>-C=O-S-C=O->-C=O-S-_??_View full abstractDownload PDF (767K) -
Koichi KOSAI, Tsuyoshi HIGASHINO, Ken-ichiro YAMADA1974Volume 32Issue 1 Pages 42-44
Published: January 01, 1974
Released on J-STAGE: November 13, 2009
JOURNAL FREE ACCESSThe methods for synthesizing acrylamido-N-glycolic acid (1), N-acetyl-α-methacryloxyacetamide (3), and 2- (3-oxazolidinyl) ethyl methacrylate (5) were studied. (1) was prepared by the reaction of acrylamide and glyoxylic acid in an aqueous solution at pH 7.5 and 50°C. (3) was synthesized from equivalent amounts of methacrylic acid, triethylamine and N-acetyl-α-chloroacetamide (2) in acetonitrile. The synthesis of (2) was also investigated. Furthermore, (5) was obtained by the reaction of methacryl chloride, triethylamine, and N- (β-hydroxyethyl) oxazolidine in benzene at 20°C.View full abstractDownload PDF (513K) -
Kikumasa SATO, Masao OHASHI1974Volume 32Issue 1 Pages 45-55
Published: January 01, 1974
Released on J-STAGE: November 13, 2009
JOURNAL FREE ACCESSDownload PDF (1288K) -
The new coupling reagents to synthesis of peptides and nucleotidesTeruaki MUKAIYAMA, Rei MATSUEDA, Mitsunori HASHIMOTO1974Volume 32Issue 1 Pages 56-63
Published: January 01, 1974
Released on J-STAGE: November 13, 2009
JOURNAL FREE ACCESSDownload PDF (1118K) -
Akira KANOME1974Volume 32Issue 1 Pages 64-68
Published: January 01, 1974
Released on J-STAGE: November 13, 2009
JOURNAL FREE ACCESSDownload PDF (1463K) -
[in Japanese], [in Japanese]1974Volume 32Issue 1 Pages 69
Published: January 01, 1974
Released on J-STAGE: November 13, 2009
JOURNAL FREE ACCESSDownload PDF (166K)
- |<
- <
- 1
- >
- >|