Highly regio- and diastereoselective Friedel-Crafts alkylation of phenols. Synthesis of 2-hydroxymandelic esters.
作者:F. Bigi、G. Casnati、G. Sartori、C. Dalprato、R. Bortolini
DOI:10.1016/s0957-4166(00)82274-0
日期:1990.1
Ortho-hydroxyalkylaton of phenol substrates was performed via coordinative complexes of metal phenolates with chiral glyoxylates: optically active 2-hydroxymandelic esters have been obtained with good yields and very high diastereoselectivity (up to 94% d.e.).