PHOTOCHROMIC OXAZINE COMPOUNDS AND METHODS FOR THEIR MANUFACTURE
申请人:Johnson & Johnson Vision Care, Inc.
公开号:EP1446390A2
公开(公告)日:2004-08-18
[EN] PHOTOCHROMIC OXAZINE COMPOUNDS AND METHODS FOR THEIR MANUFACTURE<br/>[FR] COMPOSES D'OXAZINE PHOTOCHROMES ET LEURS PROCEDES DE FABRICATION
申请人:JOHNSON & JOHNSON VISION CARE
公开号:WO2003042195A2
公开(公告)日:2003-05-22
The present invention provides photochromic oxazine compounds and methods for their manufacture, which compounds are useful as photochromic compounds. The compounds of the invention have aromatic substituents on the 2 position of the oxazine moiety.
[EN] PHOTOCHROMIC OXAZINE COMPOUNDS AND METHODS FOR THEIR MANUFACTURE<br/>[FR] COMPOSES PHOTOCHROMES A BASE D'OXAZINE ET PROCEDES DE FABRICATION CORRESPONDANTS
申请人:JOHNSON & JOHNSON VISION CARE
公开号:WO2003057679A1
公开(公告)日:2003-07-17
The present invention provides oxazine compounds having aromatic, heteroaromatic, or aliphatic substituents at the 2 position of the oxazine moiety. Additionally, a one pot method with excellent yields is provided for producing the compounds.
Up to 96% Enantioselectivities in the Hydrogenation of Fluorine Substituted (E)-2,3-Diphenylpropenoic Acids over Cinchonidine-Modified Palladium Catalyst
High enantioselectivities, up to 96%, were obtained in the hydrogenation of some disubstituted derivatives, unprecedented in the hydrogenation of prochiral unsaturated carboxylicacidsovermodified heterogeneous catalyst. The best optical purities were reached in the hydrogenation of derivates bearing a para-substituent on the β phenyl and an ortho-substituent on the α phenyl ring, respectively. The