Beyond the Roche Ester: A New Approach to Polypropionate Stereotriad Synthesis
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-catalyzedsilylformylation 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