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ChemInform Abstract: First Example of the Synthesis of Pyrrolo[1,2-d][1,4]diazocine by the Reaction of Tetrahydropyrrolo[1,2-a]pyrazines with Activated Alkynes.

✍ Scribed by L. G. Voskresensky; T. N. Borisova; T. M. Kamalitdinova; V. I. Terenin; A. A. Titov; A. V. Varlamov

Publisher: John Wiley and Sons
Year: 2009
Weight: 25 KB
Volume: 40
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200922032

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## Abstract Key feature of the synthesis of title pyrrolopyrazine scaffolds is the Curtius reaction of formylpyrrolyl‐substituted acids to generate an isocyanate, which is directly cyclized in the presence of formic acid [cf.