Complete Stereoretention in the Rhodium-Catalyzed 1,2-Addition of Chiral Secondary and Tertiary Alkyl Potassium Trifluoroborate Salts to Aldehydes
作者:Abel Ros、Varinder K. Aggarwal
DOI:10.1002/anie.200901900
日期:——
Take your new partner by the hand: Chiralsecondary and tertiaryalkyltrifluoroboratesalts undergo rhodium‐catalyzed 1,2‐addition to aldehydes with completestereoretention (handedness) in all cases, enabling the creation of quaternary stereogenic centers with essentially perfect enantioselectivity (see scheme; cod=cycloocta‐1,5‐diene).