Monophosphine compound, transition metal complex thereof and production method of optically active compound using the complex as asymmetric catalyst
申请人:Carreira M. Erick
公开号:US20050277772A1
公开(公告)日:2005-12-15
The present invention provides a compound represented by the formula (I):
wherein ring A is void or a benzene ring optionally having substituent(s), R
1
and R
2
are each independently a phenyl group optionally having substituent(s), a cyclohexyl group and the like, R
3
and R
4
are each independently a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group and the like, and X is a residue represented by —OR
5
or —NHR
6
wherein R
5
and R
6
are a lower alkyl group optionally having substituent(s), an aralkyl group optionally having substituent(s) and the like, a asymmetric transition metal complex containing the compound as a ligand and a production method of optically active compound using the complex as an asymmetric catalyst.
Synthesis of Chiral α-Aminoalkylpyrimidines Using an Enantioselective Three-Component Reaction
作者:Paul Knochel、Henry Dube、Nina Gommermann
DOI:10.1055/s-2004-829129
日期:——
A range of chiral α-aminoalkylpyrimidines has been prepared in a modular fashion in 5 steps with up to 98% ee. The key step is a CuBr-catalyzed enantioselective asymmetric three-component synthesis of propargylic amines.