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A Three-Component One-Pot Synthesis of Functionalized 5,5-Dicyanocyclopenta-1,3-dienes from Arylidene­malononitriles, Activated Acetylenes, and KCN or KSCN

✍ Scribed by Issa Yavari; Mehdi Sirouspour; Sanaz Souri

Publisher
John Wiley and Sons
Year
2010
Tongue
German
Weight
167 KB
Volume
93
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

The reaction of dialkyl acetylenedicarboxylates with arylidenemalononitriles in the presence of KSCN in MeCN led to a mixture of dialkyl (3__E__)‐4‐aryl‐3‐(arylideneamino)‐5,5‐dicyanocyclopenta‐1,3‐diene‐1,2‐dicarboxylates and dialkyl 4‐aryl‐5‐cyanothiophene‐2,3‐dicarboxylates. When these reactions were performed in the presence of KCN, only the functionalized 5,5‐dicyanocyclopenta‐1,3‐dienes were obtained.

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