Highly stereoselective synthesis of 6-perfluoroalkyl-6-fluoroalka-2,3,5(Z)-trienols through carbometallation-elimination of 5-perfluoroalkyl-substituted 4(E)-alken-2-ynols with Grignard reagents

被引:5
|
作者
Ma, Zhichao [1 ]
Zeng, Rong [1 ]
Yu, Yihua [2 ]
Ma, Shengming [1 ]
机构
[1] Zhejiang Univ, Dept Chem, Lab Mol Recognit & Synth, Hangzhou 310027, Zhejiang, Peoples R China
[2] E China Normal Univ, Dept Phys, Shanghai Key Lab Funct Magnet Resonance Imaging, Shanghai 200062, Peoples R China
基金
中国国家自然科学基金;
关键词
ELECTROLYTIC PARTIAL FLUORINATION; RADICAL-ADDITION REACTION; PERFLUOROALKYL IODIDES; GEM-DIFLUOROALLENYL; CATALYZED REACTIONS; EFFICIENT SYNTHESIS; ORGANIC-COMPOUNDS; COUPLING REACTION; ALLENES; FLUOROOLEFINS;
D O I
10.1016/j.tetlet.2009.09.003
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A highly regio- and stereoselective sequential carbometallation and Z-selective beta-elimination reaction of 5-perfluoroalkyl-4(E)-en-2-ynols with Grignard reagents in Et2O has been developed to afford various 6-perfluoroalkyl-6-fluoroalka-2,3,5(Z)-trienols in good to excellent yields Primary or secondary alkyl or aryl Grignard reagents may be used to introduce the R-2 group to the 2-position of the starting materials referring to the hydroxyl group A mechanism for this transformation has been proposed. (C) 2009 Elsevier Ltd. All rights reserved
引用
收藏
页码:6472 / 6475
页数:4
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