Enantioselective ethylation of N-(amidobenzyl)benzotriazoles catalysed by chiral aminoalcohols
摘要:
In the presence of the chiral amino-alcohol (-) N,N-dibutylnorephedrine (DBNE), N-(amidobenzyl)benzotriazoles react with diethylzinc to give the corresponding amides with up to 76% ee.
A class of pyrazole derivatives is described for use in treating p38 kinase medicated disorders. Compounds of particular interest are defined by Formula IA
wherein R
1
, R
2
, R
3
and R
4
are as described in the specification.
Enantioselective ethylation of N-(amidobenzyl)benzotriazoles catalysed by chiral aminoalcohols
作者:Alan.R. Katritzky、Philip A. Harris
DOI:10.1016/s0957-4166(00)80287-6
日期:1992.1
In the presence of the chiral amino-alcohol (-) N,N-dibutylnorephedrine (DBNE), N-(amidobenzyl)benzotriazoles react with diethylzinc to give the corresponding amides with up to 76% ee.