Differentially Substituted Phosphines via Decarbonylation of Acylphosphines
作者:Rongrong Yu、Xingyu Chen、Stephen F. Martin、Zhiqian Wang
DOI:10.1021/acs.orglett.7b00579
日期:2017.4.7
A new route to phosphines was developed by a method that features a “pre-join and transform” process that proceeds via acylphosphine intermediates that may be readily prepared from carboxylic acids and disubstituted phosphines. The efficient decarbonylations of these acylphosphines using a nickel catalyst delivered the corresponding phosphines. This method shows that the carboxyl group can play a role
Novel Ruthenium Complexes Having Hybrid Amine Ligands, Their Preparation And Use
申请人:Sandoval Christian A.
公开号:US20110092712A1
公开(公告)日:2011-04-21
The invention relates to a novel class of ruthenium complexes containing phosphine and hybrid amine ligands, their preparation and use as catalysts in the reduction of simple ketones to alcohols by molecular hydrogenation. The reactivity and enantioselectivity of such complexes in the asymmetric hydrogenation of simple ketones could be enchanced by the addition of some selective additives.
Palladium-Catalyzed C–P(III) Bond Formation by Coupling ArBr/ArOTf with Acylphosphines
作者:Xingyu Chen、Hongyu Wu、Rongrong Yu、Hong Zhu、Zhiqian Wang
DOI:10.1021/acs.joc.1c00937
日期:2021.7.2
differential phosphination reagents is reported. The acylphosphines show practicable reactivity with ArBr and ArOTf as the phosphination reagents, though they are inert to the air and moisture. The reaction affords trivalent phosphines directly in good yields with a broad substrate scope and functional group tolerance. This reaction discloses the acylphosphines’ capability as new phosphorus sources for the direct
Wittig reactions of moderate ylides with heteroaryl substituents at the phosphorus atom
作者:Marco Ackermann、Stefan Berger
DOI:10.1016/j.tet.2005.05.002
日期:2005.7
various heteroaryl substituents at the phosphorus atom to the stereoselectivity of Wittigreactions of allylic and benzylic ylides has been studied. In the case of nitrogen bearing heteroaromatic ligands at the phosphorous atom of benzylidenephosphoranes high E-alkene selectivity's of up to 90:10 could be observed. NMR spectroscopic investigations revealed that substituents at the phosphorus have influences
[EN] NOVEL RUTHENIUM COMPLEXES HAVING HYBRID AMINE LIGANDS, THEIR PREPARATION AND USE<br/>[FR] NOUVEAUX COMPLEXES DE RUTHÉNIUM POSSÉDANT DES LIGANDS AMINES HYBRIDES, LEUR PRÉPARATION ET LEUR UTILISATION
申请人:ENANTIOTECH CORP LTD
公开号:WO2009149670A1
公开(公告)日:2009-12-17
The invention relates to a novel class of ruthenium complexes containing phosphine and hybrid amine ligands, their preparation and use as catalysts in the reduction of simple ketones to alcohols by molecular hydrogenation. The reactivity and enantioselectivity of such complexes in the asymmetric hydrogenation of simple ketones could be enchanced by the addition of some selective additives.