Synthesis of New Furo[2,3-d]pyrimidines and Pyrimido[4′,5′:4,5]furo[2,3-d]pyrimidines
作者:Maisa I. Abdel Moneam、Ahmed A. Geies、Galal M. El-Naggar、Soliman M. Mousa
DOI:10.1002/jccs.200400198
日期:2004.12
compounds, where the corresponding O-alkylated products 4 a - g were obtained. Ring closure of the O-alkylated product 4 a - c performed using sodium ethoxide in refluxing ethanol afforded furo[2,3-d]pyrimidines 5 a - c . The latter compounds on reaction with a variety of reagents gave other new furopyrimidines as well as a number of furodipyrimidines.
4-羟基-6-甲基-2-苯基嘧啶-5-甲腈(3)的钠盐与不同的α-卤代化合物进行烷基化反应,得到相应的O-烷基化产物4a-g。使用乙醇钠在回流乙醇中进行的O-烷基化产物4a-c的闭环得到呋喃[2,3-d]嘧啶5a-c。后一种化合物与多种试剂反应产生其他新的呋喃嘧啶以及许多呋喃二嘧啶。