Use of asymmetric propargyl dicobalt hexacarbonyl complexes in organic synthesis: Access to enantiomerically pure α-hydroxy acid derivatives
作者:Juan M. Betancort、Carmen Ma Rodríguez、Víctor S. Martín
DOI:10.1016/s0040-4039(98)02170-4
日期:1998.12
The trapping under different conditions of the carbocation generated by acid treatment of chiral Co2(CO)6-complexed propargylic secondary alcohols permitted access to either diastereoisomer at the propargylic center. Further chemical manipulations provided either enantiomer of enantiomerically pure 1,2-difunctionalized molecules such as 1,2-diols, α-hydroxy-aldehydes or α-hydroxy-acids.
通过酸处理手性Co 2(CO)6络合的炔丙基仲醇生成的碳正离子在不同条件下的捕集允许在炔丙基中心进入任一非对映异构体。进一步的化学操作提供了对映体纯的1,2-双官能化分子的对映体,例如1,2-二醇,α-羟基醛或α-羟基酸。