๐”– Bobbio Scriptorium
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ChemInform Abstract: Synthesis of Imidazo[1,5-c][1,3]benzodiazepines via an Aza-Wittig/Carbodiimide-Mediated Annulation Process.

โœ Scribed by P. MOLINA; A. TARRAGA; D. CURIEL; C. RAMIREZ DE ARELLANO


Publisher
John Wiley and Sons
Year
2010
Weight
35 KB
Volume
29
Category
Article
ISSN
0931-7597

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## Abstract magnified image The carbodiimides **2**, obtained from reactions of iminophosphorane **1** with isocyanates, reacted with hydrazine to give selectively 3โ€aminoโ€2โ€arylaminobenzothieno[3,2โ€__d__]pyrimidinโ€4(3__H__)โ€ones **4**. Reactions of **4** with triphenylphosphine, hexachloroethane,