Carbonylation of alkynols catalyzed by Pd(II)/2-PyPPh2 dissolved in organic solvents and in ionic liquids:: a facile entry to α-methylene γ- and δ-lactones

被引：66

作者：

Consorti, CS ^{[1
]}

Ebeling, G ^{[1
]}

Dupont, J ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, IQ, Lab Mol Catalysis, BR-91501970 Porto Alegre, RS, Brazil

来源：

TETRAHEDRON LETTERS | 2002年 / 43卷 / 05期

关键词：

D O I：

10.1016/S0040-4039(01)02309-7

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The carbonylation of terminal 3-alkyn-1-ols and 1-alkyn-4-ols by Pd(OAc)(2) associated with 2-(diphenylphosphino)pyridine (2-PyPPh2) dissolved in organic solvents or in 1-n-butyl-3-methyl imidazolium ionic liquids affords quantitatively and selectively exo-alpha-methylene gamma- and delta-lactones, respectively. In the case of the reactions performed in ionic liquids (biphasic conditions), the lactones were isolated by simple distillation and the ionic catalyst solution can be reused. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：753 / 755

页数：3

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