β-Selective C-Mannosylation of Electron-Rich Phenols
作者:Till Opatz、Stefan Weck
DOI:10.1055/s-0029-1218772
日期:2010.7
The reaction of tetra-O-benzylmannosyl trichloroacetimidate with electron-rich phenols in the presence of TMSOTf surprisingly leads to the exclusive formation of aryl β-C-glycosides while a preference for the α-anomer could be observed with other Lewis acids such as ZnCl2.