N-heterocyclic carbene-initiated α-acylvinyl anion reactivity:: Additions of α-hydroxypropargylsilanes to aldehydes

被引:41
作者
Reynolds, Troy E. [1 ]
Stern, Charlotte A. [1 ]
Scheidt, Karl A. [1 ]
机构
[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
关键词
D O I
10.1021/ol0710515
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Highly substituted alpha,beta-unsaturated ketones are prepared by the N-heterocyclic carbene-initiated addition of alpha-hydroxypropargylsilanes to aldehydes. This strategy serves as a highly efficient alternative to the standard Morita-Baylis-Hillman (MBH) approaches for these types of compounds. In contrast to the MBH reaction, different substitution in the beta-position of the product (R-1) can be accommodated in moderate to excellent yields with a high degree of control over the resulting alkene.
引用
收藏
页码:2581 / 2584
页数:4
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共 58 条
[1]   Reevaluation of the mechanism of the Baylis-Hillman reaction: Implications for asymmetric catalysis [J].
Aggarwal, VK ;
Fulford, SY ;
Lloyd-Jones, GC .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (11) :1706-1708
[2]   Imidazolylidenes, imidazolinylidenes and imidazolidines [J].
Arduengo, AJ ;
Krafczyk, R ;
Schmutzler, R ;
Craig, HA ;
Goerlich, JR ;
Marshall, WJ ;
Unverzagt, M .
TETRAHEDRON, 1999, 55 (51) :14523-14534
[3]   Recent advances in the Baylis-Hillman reaction and applications [J].
Basavaiah, D ;
Rao, AJ ;
Satyanarayana, T .
CHEMICAL REVIEWS, 2003, 103 (03) :811-891
[4]   The asymmetric Baylis-Hillman reaction [J].
Brzezinski, LJ ;
Rafel, S ;
Leahy, JW .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (18) :4317-4318
[5]   Hydroacylation of activated ketones catalyzed by N-heterocyclic carbenes [J].
Chan, A ;
Scheidt, KA .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (14) :4558-4559
[6]   Conversion of α,β-unsaturated aldehydes into saturated esters:: An umpolung reaction catalyzed by nucleophilic carbenes [J].
Chan, A ;
Scheidt, KA .
ORGANIC LETTERS, 2005, 7 (05) :905-908
[7]   Copper(I)-catalyzed disilylation of alkylidene malonates employing a Lewis base activation strategy [J].
Clark, CT ;
Lake, JF ;
Scheidt, KA .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (01) :84-85
[8]   Nucleophilic carbenes in asymmetric organocatalysis [J].
Enders, D ;
Balensiefer, T .
ACCOUNTS OF CHEMICAL RESEARCH, 2004, 37 (08) :534-541
[9]   THE SYNTHESIS OF ALPHA-BETA-UNSATURATED KETONES FROM BETA-SILYLENONES AND BETA-SILYLYNONES [J].
FLEMING, I ;
PERRY, DA .
TETRAHEDRON, 1981, 37 (23) :4027-4034
[10]   The vinylogous intramolecular Morita-Baylis-Hillman reaction: Synthesis of functionalized cyclopentenes and cyclohexenes with trialkylphosphines as nucleophilic catalysts [J].
Frank, SA ;
Mergott, DJ ;
Roush, WR .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (11) :2404-2405