Disproportionation reaction of diarylmethylisopropyl ethers: a versatile access to diarylmethanes from diarylcarbinols speeded up by the use of microwave irradiation

被引:35
作者
L'Hermite, Nathalie [1 ]
Giraud, Anne [1 ]
Provot, Olivier [1 ]
Peyrat, Jean-Francois [1 ]
Alami, Mouad [1 ]
Brion, Jean-Daniel [1 ]
机构
[1] Univ Paris Sud, Fac Pharm, CNRS, Chim Therapeut Lab,BioCIS,UMR 8076, F-92296 Chatenay Malabry, France
关键词
disproportionation; diarylcarbinols; diarylmethanes; i-PrOH; CBr4; TfOH; microwave heating;
D O I
10.1016/j.tet.2006.09.083
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
An efficient synthesis of diarylmethanes under classical thermal conditions and under microwave heating is described from diarylcarbinols via a new disproportionation reaction. The key step involves a selective hydride transfer of isopropyl ether intermediates. Mild reaction conditions i.e., catalytic CBr4 or TfOH in i-PrOH and good yields render this method useful and competitive to the conventional approaches relying on application of external reducing agents. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:11994 / 12002
页数:9
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