Sulfanilamide誘導體の合成研究 第5報
2-aminothiazoleのbis-sulfanilyl誘導體 その2
1949 年 69 巻 4 号 p. 165-171
詳細
1949 年 69 巻 4 号 p. 165-171
The authors synthesized monosulfonyl and bis-sulfonyl compounds as listed in Table I, and the ultrax-violet ray absorption spectra of these compounds are shown in Figs. 1, 2, 3 and 4. 3-Acetosulfanilyl-thiazolon-acetosulfanilylimide (2) (Compound II, Table I) gives two crystals of decompn. 130-135° and 190-240°, respectively. As can be seen from Fig. 1, these compounds give identical spectrum so that the two must be the same compound, the former being a hydrate of the latter. Bissulfonyl compounds (Compounds II, III, VI, VIII and X), R2-sulfonylthiazolon-R1-sulfonimide (2), react with diethylamine and guanidine carbonate and quantitatively form 2-R1-sulfonamidethiazole and R2-sulfondiethylamide or R2-sulfonylguanidine. Bis-acetosulfanilimide and bis-p-nitrobenzenesulfonyl compound of 2-amino-4, 6-dimethylpyrimidine do not react either with diethylamine or guanidine carbonate.
