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Reaction of 3-Cyano-2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene with Enaminonitriles

✍ Scribed by Rafat M. Mohareb; Fatma A. Al-Omran; Jonathan Z. Ho

Book ID: 106213141
Publisher: Springer Vienna
Year: 2002
Tongue: English
Weight: 124 KB
Volume: 133
Category: Article
ISSN: 0026-9247
DOI: 10.1007/s00706-002-0494-7

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## Abstract 2‐Amino‐3‐cyano‐4,5,6,7‐tetrahydrobenzo[__b__]thiophene **1a** or 2‐amino‐3‐cyano‐4,7‐di‐ phenyl‐5‐methyl‐4__H__‐pyrano[2,3‐__c__]pyrazole **2a** reacted with phenylisocyanate in dry pyridine to give 2‐(3‐phenylureido)‐3‐cyanobenzo[b]thiophene **1b** or 2‐disubstituted amino‐3‐cyanopyra

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