Preparation of 2-Silicon-Substituted 1,3-Dienes and Their Diels-Alder/Cross-Coupling Reactions

被引:23
作者
Pidaparthi, Ramakrishna R. [1 ]
Junker, Christopher S. [1 ]
Welker, Mark E. [1 ]
Day, Cynthia S. [1 ]
Wright, Marcus W. [1 ]
机构
[1] Wake Forest Univ, Dept Chem, Winston Salem, NC 27109 USA
基金
美国国家科学基金会;
关键词
ALDER REACTIONS; STEREOSELECTIVE-SYNTHESIS; SILICON; METATHESIS; COMPLEXES;
D O I
10.1021/jo901919m
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
2-Triethoxysilyi-substituted 1,3-butadiene has been prepared in 30-g quantities from chloroprene via a simple synthetic procedure. Silatrane- and catechol-substituted analogues of this main group element substituted diene were then prepared on a 10-g scale by ligand exchange and characterized by X-ray crystallography in addition to standard spectroscopic techniques. 2-Dimethylphenylsilyl-1,3-butadiene has also been prepared from chloroprene on an 8-g scale. Diels-Alder reactions of these dienes are reported as well as subsequent TBAF-assisted/Pd-catalyzed Hiyama cross-coupling reactions of those Diels-Alder adducts Silicon-substituted cycloadducts and cross-coupled products were also characterized by NMR spectroscopy and, in two cases, by X-ray crystallography.
引用
收藏
页码:8290 / 8297
页数:8
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