Heterocyclic Synthesis with Nitriles: Synthesis of Pyrazolopyrimidine and Pyrazolopyridine Derivatives
作者:Abdellatif M. Salaheldin、Ana M. F. Oliveira-Campos、Lígia M. Rodrigues
DOI:10.1080/00397910802517814
日期:2009.3.10
Abstract The reaction of N 1-substituted-5-amino-4-cyanopyrazoles with malononitrile and diethylmalonate occurs with formation of 6-substituted pyrazolo[3,4-d]pyrimidines, and pyrazolo[3,4-b]pyridines respectively. The structures of the products and conceivable mechanisms are discussed.
摘要 N 1-取代-5-氨基-4-氰基吡唑与丙二腈和丙二酸二乙酯反应分别生成6-取代吡唑并[3,4-d]嘧啶和吡唑并[3,4-b]吡啶。讨论了产品的结构和可能的机制。