Reaction of 2-methylene-1,3-dicarbonyl compounds containing a CF3-group with 1,3-dienes

被引：29

作者：

Nenajdenko, VG ^{[1
]}

Statsuk, AV ^{[1
]}

Balenkova, ES ^{[1
]}

机构：

[1] Moscow State Univ, Dept Chem, Moscow 119899, Russia

来源：

TETRAHEDRON | 2000年 / 56卷 / 35期

关键词：

Diels-Alder reaction; hetero-dienes; alpha; beta-unsannated ketones; trifluoromethyl ketones; 2-methylene-1,3-dicarbonyl compounds;

D O I：

10.1016/S0040-4020(00)00605-0

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The Knoevenagel condensation of 1-substituted 4,4,4-trifluorobutan-1,3-diones with paraformaldehyde in the presence of cyclic and Linear 1,3-dienes leads to Diels-Alder cycloadducts via in situ formation of the appropriate 2-methylene-1,3-dicarbonyl compounds 2(a-c). In the reactions with linear 1,3-dienes, compounds 2(a-c) react as dienophiles. In the case of the reactions with cyclic 1,3-dienes both normal and inverse demand Diels-Alder reactions take place. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：6549 / 6556

页数：8

共 33 条

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