<i>N</i>-Heterocyclic Carbene-Initiated α-Acylvinyl Anion Reactivity: Additions of α-Hydroxypropargylsilanes to Aldehydes
作者:Troy E. Reynolds、Charlotte A. Stern、Karl A. Scheidt
DOI:10.1021/ol0710515
日期:2007.6.1
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 (R1) can be accommodated
通过N-杂环卡宾引发的α-羟基炔丙基硅烷与醛的加成反应制备高度取代的α,β-不饱和酮。对于这些类型的化合物,该策略可作为标准Morita-Baylis-Hillman(MBH)方法的高效替代方案。与MBH反应相反,产物(R1)的β-位的不同取代可以以中等至优异的收率进行,并且高度控制所得的烯烃。