Asymmetric substitutions of O-Boc-protected Morita–Baylis–Hillman adducts with pyrrole and indole derivatives
作者:Long Huang、Yin Wei、Min Shi
DOI:10.1039/c1ob06671d
日期:——
An efficient asymmetricsubstitution process of O-Boc-protectedMorita–Baylis–Hillmanadducts with various pyrrole and indole derivatives has been developed in the presence of (DHQD)2PYR in THF, affording the corresponding products in good to high yields (up to 99% yield) and moderate to high ee values (up to 92 and 96% ee) under mild conditions.
The first Lewis base-catalysed chemoselective asymmetric N-allylic alkylation of enamides with Morita–Baylis–Hillman carbonates has been developed, which affords multifunctional products in moderate to high enantioselectivity (up to 92% ee).