A facile synthesis of 2,4,6-trisubstituted pyrimidines from the reaction of α-chloro oxime ethers with Grignard reagents has been developed. Alkyl and aryl groups can be easily introduced at the 2-...
A direct oxidative route for the synthesis of pyrimidines using heteropolyacids
作者:Majid M. Heravi、Samaheh Sadjadi、Hossein A. Oskooie、Rahim Hekmat Shoar、Fatemeh F. Bamoharram
DOI:10.1016/j.tetlet.2008.11.105
日期:2009.2
Pyrimidines are synthesized via a direct oxidative one-pot, three-component, reaction between a 1,3-diketone, benzaldehydes and ammonium acetate in the presence of catalytic amounts of Keggin-type heteropolyacids under refluxing conditions in good yields. (C) 2008 Elsevier Ltd. All rights reserved.
Reaction of α,α-Dibromo Oxime Ethers with Grignard Reagents: Alkylative Annulation Providing a Pyrimidine Core
A convergent synthesis of a pyrimidine core has been achieved. Treatment of alpha,alpha-dibromo oxime ethers, which are easily derived from the corresponding esters, with a variety of Grignardreagents provides trisubstituted pyrimidines in good yields. This new method offers an easy access to functionalized pyrimidines.