作者:Corinne N. Foley、James L. Leighton
DOI:10.1021/ol500051e
日期:2014.2.21
An efficient, step-economical, and scalable approach to the synthesis of polypropionate stereotriads has been developed. Either 2-butyne or propyne is subjected to rhodium-catalyzed silylformylation and in situ crotylation of the resulting aldehydes. Tamao oxidation under either “standard” conditions or “aprotic” conditions then delivers the completed stereotriads in a three-step, two-pot sequence
已开发出一种高效、经济且可扩展的方法来合成聚丙酸酯立体三联体。2-丁炔或丙炔经过铑催化的甲硅烷基甲酰化和所得醛的原位巴豆化。Tamao 在“标准”条件或“非质子”条件下氧化,然后以三步两锅的顺序提供完整的立体三联体。与经典的罗氏酯方法相比,α-立体中心是“免费”获得的。