Gewald reaction
- 格瓦尔德反应（格瓦尔德反应指醛或酮与α-氰基酯在硫磺和碱存在下缩合，生成多取代的2-氨基噻吩）
Gewald reaction
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abstract:
The Gewald reaction is an organic reaction involving the condensation of a ketone (or aldehyde when R2 = H) with a α-cyanoester in the presence of elemental sulfur and base to give a poly-substituted 2-amino-thiophene.Gewald, K.
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