Sulfur Nitrides in Organic Chemistry. 18. Preparation and Reduction of Benzo [1, 2-c: 3, 4-c′: 5, 6-c ″] tris-and Benzo [1, 2-c: 3, 4-c′] bis [1, 2, 5] thiadiazole. A …

…, H Eguchi, K Takahashi, T Hatta, M Tashiro

Index: Mataka; Eguchi; Takahashi; Hatta; Tashiro Bulletin of the Chemical Society of Japan, 1989 , vol. 62, # 10 p. 3127 - 3131

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Citation Number: 19

Abstract

Benzotris-(3) and benzobis [1, 2, 5] thiadiazole (4) were prepared in a moderate yield, respectively, by the reaction of tetrasulfur tetranitride (5) with halocatechols (6) and- resorcinols (7). The reduction of 3 and 4 with Sn powder in a mixture of concentrated hydrochloric acid and dioxane gave benzenehexamine (1) and 1, 2, 3, 4-benzenetetramine (2a) and its 5-methyl derivative (2b) in good yields, as a stable tri-(1· 3HCl) and ...