Microwave-Assisted Synthesis of Fused and Substituted 2-Aminopyridines from β-Halo α,β-Unsaturated Aldehydes
作者:Pranjal Gogoi、Romesh Boruah、Junali Gogoi、Limi Goswami
DOI:10.1055/s-0034-1380516
日期:——
β-halo α,β-unsaturated aldehydes by a microwave-assisted Knoevenagel reaction. The β-halo-α,β-unsaturated aldehydes were, in turn, efficiently synthesized from the corresponding ketones by a Vilsmeier formylation reaction. The protocol was used to synthesize several novel steroidal and nonsteroidal fused 2-aminopyridine derivatives. 2-Aminopyridines were synthesized from β-halo α,β-unsaturated aldehydes
摘要 通过微波辅助的Knoevenagel反应,由β-卤代α,β-不饱和醛合成2-氨基吡啶。通过Vilsmeier甲酰化反应,由相应的酮有效地合成了β-卤代-α,β-不饱和醛。该方案用于合成几种新颖的甾体和非甾体稠合的2-氨基吡啶衍生物。 通过微波辅助的Knoevenagel反应,由β-卤代α,β-不饱和醛合成2-氨基吡啶。通过Vilsmeier甲酰化反应,由相应的酮有效地合成了β-卤代-α,β-不饱和醛。该方案用于合成几种新颖的甾体和非甾体稠合的2-氨基吡啶衍生物。