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Synthesis of pyrazolotriazolopyrimidine tri-fused heterocyclic compounds

✍ Scribed by Liu, Ying; Ren, Jun; Jin, Gui-Yu

Book ID
115438308
Publisher
Science Reviews 2000 Ltd
Year
2004
Tongue
English
Weight
60 KB
Volume
2004
Category
Article
ISSN
0308-2342

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## Abstract magnified image 2‐(1‐Aryl‐ethylidene)‐malononitriles **1a**, **1b**, **1c**, **1d** undergo self dimerization in ethanol catalyzed by sodium ethoxide to afford 2‐[4,6‐diaryl‐3‐cyano‐6‐methyl‐5,6‐dihydropyridin‐2(1__H__)‐ylidene]‐malononitrile derivatives **3a**, **3b**, **3c**, **3d** r