Photochemistry in supercritical carbon dioxide.: The benzophenone-mediated addition of aldehydes to α,β-unsaturated carbonyl compounds

被引：13

作者：

Pacut, R

Grimm, ML

Kraus, GA

Tanko, JM ^{[1
]}

机构：

[1] Virginia Polytech Inst & State Univ, Dept Chem, Blacksburg, VA 24061 USA

[2] Iowa State Univ, Dept Chem, Ames, IA 50011 USA

来源：

TETRAHEDRON LETTERS | 2001年 / 42卷 / 08期

基金：

美国国家科学基金会;

关键词：

environmentally benign synthesis; supercritical fluid solvent; photochemistry; Friedel-Crafts acylation;

D O I：

10.1016/S0040-4039(00)02273-5

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The photo-induced addition of aldehydes to alpha,beta -unsaturated carbonyl compounds is an effective, 'environmentally benign' method for the synthesis of 2-acyl-1,4-hydroquinones (from quinones) and 1,4-diketones (from enones). This process has been improved by eliminating benzene as a solvent and replacing it with supercritical carbon dioxide. Highest yields were obtained at higher CO, pressures, or with the addition of 5% t-butyl alcohol as co-solvent. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1415 / 1418

页数：4

共 11 条

[1]

[Anonymous], 1999, CHEM SYNTHESIS USING

[2] Supercritical fluids as solvents for chemical and materials processing [J].