Synthesis of phosphonium salts under microwave activation - Leaving group and phosphine substituents effects

被引：24
作者：
Cvengros, J
Toma, S
Marque, S
Loupy, A
机构：
[1] Univ Paris 11, Inst Chim Mol & Mat Orsay, CNRS, UMR 8615,Lab React Select Supports, F-91405 Orsay, France
[2] Comenius Univ, Fac Nat Sci, SK-84215 Bratislava, Slovakia
来源：
CANADIAN JOURNAL OF CHEMISTRY | 2004年 / 82卷 / 09期
关键词：
microwave irradiation; specific effects; phosphonium salts; leaving group effects;
D O I：
10.1139/V04-103
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The specific nonpurely thermal effects of microwaves were evidenced according to neutral or charged leaving groups during nucleophilic substitution of benzylic electrophiles with triphenylphosphine and tributylphosphine. Microwave (MW) irradiation considerably enhanced the reactions with charged alkylating agents, especially under solvent-free conditions. Results are interpreted considering the magnitude of MW effects according to the position of the transition state along the reaction coordinates.
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收藏
页码：1365 / 1371
页数：7
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