Regio- and diastereo-selectivity of the insertion of aldehydes into alkyne zirconocene complexes
作者:Martin E. Maier、Thorsten Oost
DOI:10.1016/0022-328x(95)05587-2
日期:1995.12
aldehydes into alkyne-zirconocene complexes provides configurationally pureallyl alcohols in a one-pot procedure. In the case of unsymmetrical alkynes, the regioselectivity of the insertion process is high for terminal alkynes. With trimethylsilyl-substituted alkynes the regioseectivity is low. The insertion of chiral aldehydes into the symmetrical oct-4-yne-zirconocene complex provides the Cram isomer as