Cyclocondensation reaction of 4-aryl-4-methoxy-1,1,1-trifluoro-3-buten-2-ones with urea Synthesis of novel 6-aryl(5-methyl)-4-trifluoromethyl-2(1H)-pyrimidinones

被引:43
作者
Bonacorso, HG [1 ]
Lopes, IS [1 ]
Wastowski, AD [1 ]
Zanatta, N [1 ]
Martins, MAP [1 ]
机构
[1] Univ Fed Santa Maria, Dept Quim, NUQUIMHE, BR-97105900 Santa Maria, RS, Brazil
关键词
2(1H)-pyrimidinones; pyrimidines; enones; cyclization;
D O I
10.1016/S0022-1139(02)00287-7
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The synthesis of a novel series of eleven 6-aryl(5-methyl)-4-trifluoromethyl-2(1H)-pyrimidinones, where aryl = Ph, 4-CH3Ph, 4-FPh, 4-ClPh, 4-BrPh, 4-OCH3Ph and alkyl = H, CH3, from the reaction of 4-aryl-4-methoxy-1,1,1-trifluoro-3-buten-2-ones with urea in the presence of hydrochloric acid, is reported. Trifluoroacetylation of acetophenone- and propiophenone-dimethylacetals derived from phenones, was employed to obtain the precursors. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:29 / 32
页数:4
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