Enantioselective Alkyne Conjugate Addition Enabled by Readily Tuned Atropisomeric <i>P</i>,<i>N</i>-Ligands
作者:Sourabh Mishra、Ji Liu、Aaron Aponick
DOI:10.1021/jacs.7b00363
日期:2017.3.8
structure, the 5-membered chiral biaryl heterocyclic scaffold represents a departure from 6-membered P,N-ligands that facilitates tuning and enables ligand evolution to address issues of selectivity and reactivity. In this vein, the Cu-catalyzedenantioselective conjugate alkynylation of Meldrum's acid acceptors is reported using Me-StackPhos. Enabled by this new ligand, the reaction tolerates a wide range
MONOPHOSPHINE COMPOUNDS, TRANSITION METAL COMPLEXES THEREOF AND PRODUCTION OF OPTICALLY ACTIVE COMPOUNDS USING THE COMPLEXES AS ASYMMETRIC CATALYSTS
申请人:Sumitomo Chemical Company, Limited
公开号:EP1773853A1
公开(公告)日:2007-04-18
US7790882B2
申请人:——
公开号:US7790882B2
公开(公告)日:2010-09-07
[EN] MONOPHOSPHINE COMPOUNDS, TRANSITION METAL COMPLEXES THEREOF AND PRODUCTION OF OPTICALLY ACTIVE COMPOUNDS USING THE COMPLEXES AS ASYMMETRIC CATALYSTS<br/>[FR] COMPOSES DE MONOPHOSPHINE, COMPLEXES DE METAUX DE TRANSITION ASSOCIES ET PRODUCTION DE COMPOSES ACTIFS SUR LE PLAN OPTIQUE AU MOYEN DESDITS COMPLEXES EN TANT QUE CATALYSEURS ASYMETRIQUES
申请人:SUMITOMO CHEMICAL CO
公开号:WO2005121157A1
公开(公告)日:2005-12-22
The present invention provides a compound represented by the formula (I): wherein ring A is void or a benzene ring optionally having substituent(s), R1 and R2 are each independently a phenyl group optionally having substituent(s), a cyclohexyl group and the like, R3 and R4 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 -OR5 or -NHR6 wherein R5 and R6 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.