Synthesis of β-halobutenolides and their Pd(0)-catalyzed cross-coupling reactions with terminal alkynes and organozinc reagents.: A general route to β-substituted butenolides and formal synthesis of cis-whisky lactone

被引:97
作者
Ma, SM [1 ]
Shi, ZJ [1 ]
Yu, ZQ [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Organ Chem, Organomet Chem Lab, Shanghai 200032, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1016/S0040-4020(99)00726-7
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
An improved procedure for the efficient synthesis of beta-halobutenolides was developed. The Pd(0)-catalyzed coupling reactions of beta-halobutenoides with terminal alkynes or organozine reagents, i.e., 1-alkenyl, aryl, and alkyl zinc reagents, to afford beta-substituted butenolides were carefully studied. Using the coupling protocol of gamma-(n-butyl)-beta-iodobutenolide with methylzinc halide, we performed an efficient formal synthesis of whisky lactone. (C) 1999 Elsevier Science Ltd. AII rights reserved.
引用
收藏
页码:12137 / 12148
页数:12
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