Amino alcohol-boron-binol complex and method for preparing optically active amino alcohol derivative by using same
申请人:MOLECULES & MATERIALS CO., LTD.
公开号:US11130734B2
公开(公告)日:2021-09-28
Disclosed are an amino alcohol-boron-binol complex as an intermediate, including Complex 3-1-1 shown below, and a method for preparing an optically active amino alcohol by using the same, wherein a racemic amino alcohol is resolved in an enationselective manner using a boron compound and a (R)- or (S)-binol, whereby an amino alcohol derivative with high optical purity can be prepared at high yield.
AMINO ALCOHOL-BORON-BINOL COMPLEX AND METHOD FOR PREPARING OPTICALLY ACTIVE AMINO ALCOHOL DERIVATIVE BY USING SAME
申请人:MOLECULES & MATERIALS CO., LTD.
公开号:US20210206719A1
公开(公告)日:2021-07-08
Disclosed are an amino alcohol-boron-binol complex as an intermediate, including Complex 3-1-1 shown below, and a method for preparing an optically active amino alcohol by using the same, wherein a racemic amino alcohol is resolved in an enation selective manner using a boron compound and a (R)- or (S)-binol, whereby an amino alcohol derivative with high optical purity can be prepared at high yield.
Friedel–Crafts hydroxyalkylation through activation of a carbonyl group using AlBr3: an easy access to pyridyl aryl/heteroaryl carbinols
Aromatic electrophilic substitution of aromatic/electron rich heteroaromatic compounds with AlBr3 activated aldehydes/ketone to afford pyridyl aryl/heteroaryl or diaryl carbinols is described. The strong electron donating group dictates the regiochemical outcome of the product.