Thiacyanocarbons. 6. 1,4-Dithiinodiisothiazole-3,7-dicarbonitrile, Isothiazolepentathiepine-8-carbonitrile, and Disodium 5-Cyanoisothiazoledithiolate

Article abstract of DOI:10.1021/jo01313a020

The synthesis of 1,4-dithiino<2,3-c;6,5-c>diisothiazole-3,7-dicarbonitrile and isothiazole<3,4-f><1,2,3,4,5>pentathiepine-8-carbonitrile by a sulfur insertion-rearrangement reaction of 1,4-dithiin-2,3,5,6-tetracarbonitrile is described.The sulfur insertio