Chiral copper complex catalyst composition and asymmetric production process using the same
申请人:——
公开号:US20010037036A1
公开(公告)日:2001-11-01
There is disclosed chiral copper complex catalyst composition, which is obtained by contacting an optically active N-salicylideneaminoalcohol compound of formula (1):
1
with a mono-valent or di-valent copper compound in an inert solvent,
wherein R
1
and R
2
represent an alkyl group and the like,
X
1
and X
2
represent a hydrogen atom, a halogen atom, a nitro group, an alkyl group, an alkoxy group, a cyano group or the like, and
the amount of the mono-valent or di-valent copper compound is less than 1 mole per 1 mole of the optically active N-salicylideneaminoalcohol compound of formula (1), and a process for producing an optically active cylopropane-carboxylic acid ester using the same.
Chiral copper complex and production processes thereof and using the same
申请人:Kamitamari Masashi
公开号:US20050090684A1
公开(公告)日:2005-04-28
There is disclosed an optically active salicylideneaminoalcohol compound of formula (1):
wherein R
1
represents an alkyl group or the like, R
2
represents
an aryl group and the like, and
when X
1
represents a nitro, X
2
is a hydrogen atom,
when X
1
represents a chlorine atom, X
2
is a chlorine atom, and
when X
1
is a hydrogen atom, X
2
is a fluorine atom; and the carbon atom denoted by “*” is an asymmetric carbon atom having either an S or R configuration, and a chiral copper complex produced from the optically active salicylidenaminoalcohol compound and a copper compound.