Synthesis of Benzopentathiepins. Reactions of 1,3-Benzodithiole-2-Thione and 1,2-Benzenedithiol With Elemental Sulfur in Liquid Ammonia

Abstract

Benzopentathiepins were synthesized by new reaction of 1,3-benzodithiole-2-thiones and 1,2-benzenedithiols with elemental sulfur/liquid ammonia at ambient temperature in high yields.

TBAF Promoted Formation of Symmetrical Trisulfides

“…Preparation of symmetrical, acyclic trisulfides without additional functional groups is very well documented . Most common methods for their preparation are based on reaction of thiols with sulfur , sulfur dichloride , or coupling of alkyl halides with sodium trisulfide . Most suitable substrates used in the synthesis of trisulfides include Bunte salts , metal sulfides , and thiosulfenyl chloride ; the latter can also be used for the preparation of unsymmetrical trisulfides.…”

Efficient Synthesis of Functionalized Unsymmetrical Dialkyl Trisulfanes

“…The most common methods include the reaction of thiols with sulfur dichloride, 18 the coupling of alkyl halides with sodium trisulfide, 19 and the reaction of thiols or disulfanes with sulfur. 20 Thio-alkylation reactions of various thiosulfenate species can also produce trisulfanes. The most suitable substrates include Bunte salts, 21 metal sulfides, 22 and thiosulfenyl chloride.…”

Novel and Efficient Synthesis of Unsymmetrical Trisulfides

“…4 The most common methods for obtaining symmetrical trisulfides include the reaction of thiols with sulfur dichloride, 5 the coupling of alkyl halides with sodium trisulfide, 6 and the reaction of thiols or disulfides with sulfur. 7 Thioalkylation of various thiosulfenate species can also produce trisulfides. The most suitable substrates include Bunte salts, 8 metal sulfides, 9 and thiosulfenyl chloride.…”