Kinetic resolutions and kineticasymmetrictransformations (KAT) as well as dynamickinetic resolutions and dynamickineticasymmetrictransformations (DYKAT) are important synthetic protocols. The feasibility of KAT and DYKAT processes for asymmetric allylic alkylations (AAA) is explored utilizing a single substrate--conduritol B tetraesters. Both processes can be performed resulting in excellent
Pd Catalyzed kinetic resolution of conduritol B. Asymmetric synthesis of (+)-cyclophellitol
作者:Barry M. Trost、Erik J. Hembre
DOI:10.1016/s0040-4039(98)02274-6
日期:1999.1
Enantiomerically pure (+)-cyclophellitol is readily available from benzoquinone employing an asymmetric palladium catalyzed kinetic resolution of racemic conduritolB and a novel easily cleavable pivalate analogue.