The Application of Chiral Aminonaphthols in the Enantioselective Addition of Diethylzinc to Aryl Aldehydes
作者:Da-Xue Liu、Li-Cheng Zhang、Quan Wang、Chao-Shan Da、Zhuo-Qun Xin、Rui Wang、Michael C. K. Choi、Albert S. C. Chan
DOI:10.1021/ol016341e
日期:2001.8.1
[reaction: see text]. Optically active aminonaphthol 3 obtained by condensation of 2-naphthol, benzaldehyde, and (S)-methylbenzylamine followed by N-methylation was found to catalyze the enantioselective ethylation of aryl aldehydes to secondary alcohols with high enantioselectivities (up to 99.8%) at room temperature.
The invention relates to the compounds of formula: (I) which are as defined in the specification. Their use as chiral ligands in catalytic aryl transfer reactions to aromatic aldehydes is also described.
The invention relates to the compounds of formula: (I) which are as defined in the specification. Their use as chiral ligands in catalytic aryl transfer reactions to aromatic aldehydes is also described.
This application relates to a substituted hydroxyphenyl ketone compound of formula I, or a pharmaceutically acceptable salt thereof, a pharmaceutical composition thereof and its use in treating migraine.
This application also relates to processes for preparing a compound of formula I, and intermediate compounds useful therein.