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Synthesis of thieno[3,4-d]-1,3-dithiol-2-one derivatives

✍ Scribed by Xin Chen; Ronald L. Elsenbaumer

Publisher
Elsevier Science
Year
2009
Tongue
French
Weight
277 KB
Volume
50
Category
Article
ISSN
0040-4039

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✦ Synopsis

Synthesis a b s t r a c t

A series of mono-substituted and bis-substituted derivatives of thieno [3,4-d]-1,3-dithiol-2-one were prepared through halogenation, chloromethylation, and subsequent nucleophilic substitution reactions. Compounds were characterized by NMR, FT-IR, and HRMS.

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## Abstract A series of new 2‐substituted 3‐(4‐chlorophenyl)‐5,8,9‐trimethylthieno[3′,2′: 5,6]pyrido[4,3‐__d__]pyrimidin‐4(3__H__)‐ones **8** were synthesized __via__ an aza‐__Wittig__ reaction. Phosphoranylideneamino derivatives **6a** or **6b** reacted with 4‐chlorophenyl isocyanate to give carbo