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Paper | Regular issue | Vol 31, No. 5, 1990, pp.883-888
Published online, 1st January, 1970
DOI: 10.3987/COM-90-5351
Synthesis of Imdazo[4,5-d]imidazole-2,5-dithiones by Crisscross Addition Reaction of 1,4-Diaza-1,3-dienes to Isothiocyanatorimethylsilane

Masahiko Takahashi* and Shinji Miyadai

*Department of Industrial Chemistry, Faculty of Engineering, Ibaraki University, 4-12-1 Nakanarusawamachi, Hitachi, Ibaraki 316-8511, Japan


Treatment of 1,4-disubstituted 1,4-diaza-1,3-dienes with isothiocyanatotrimethylsilane yielded crisscross addition products, 1,4-disubstituted tetrahydroimidazo[4,5-d]imidazole-2,5-dithiones.