Convergent diastereoselective preparation of adjacent quaternary stereocenters in an acyclic system
作者:Tom Mejuch、Bishnu Dutta、Mark Botoshansky、Ilan Marek
DOI:10.1039/c2ob25121c
日期:——
3-disubstituted allylmetal species with ketones allow the preparation of allylic vicinal diol derivatives in good yields with excellent diastereomeric ratios from commercially available alkynes. Twoadjacentquaternary centers are formed with the concomitant formation of three new carbon–carbon bonds in a single-pot operation in an acyclicsystem. The bulky substituent of the ketone occupies a pseudo-axial position