Lipase-catalyzed irreversible transesterifications using enol esters as acylating reagents: preparative enantio- and regioselective syntheses of alcohols, glycerol derivatives, sugars and organometallics
AROMATIC AMINE COMPOUND, CURING AGENT FOR EPOXY COMPOUND, CURABLE COMPOSITION, CURED PRODUCT, METHOD FOR PRODUCING CURED PRODUCT, AND METHOD FOR PRODUCING AROMATIC AMINE COMPOUND
申请人:TOKYO OHKA KOGYO CO., LTD.
公开号:US20210130284A1
公开(公告)日:2021-05-06
An aromatic amine compound capable of satisfactorily forming a cured product having exceptional alkali resistance by reaction with an epoxy compound; a curing agent for an epoxy compound, the curing agent including the aromatic amine compound; a curable composition including the curing agent for an epoxy compound; a cured product of the curable composition; a method for producing the cured product; and a method for producing the abovementioned aromatic amine compound. The aromatic amine compound has a structure such that a specific position in a central skeleton comprising a fused ring such as a fluorene ring is substituted with a side-chain group including two aromatic groups linked by a flexible bond such as an amide bond, at least one amino group is bonded to the end of the side-chain group, and the structure has no hydroxyl groups.
[EN] NOVEL TRANSITION METAL COMPLEXES, THEIR PREPARATION AND USE<br/>[FR] NOUVEAUX COMPLEXES DE MÉTAUX DE TRANSITION, LEUR PRÉPARATION ET UTILISATION
申请人:LANXESS DEUTSCHLAND GMBH
公开号:WO2014187973A1
公开(公告)日:2014-11-27
Novel transition metal complexes are provided which represent viable catalysts for a broad variety of reactions such as hydrogenation reactions and metathesis reactions. Novel preparation processes are made available via unprecedented routes inter alia not involving structures according to Grubbs I or Grubbs II catalysts.
PRODUCTION OF OPHTHALMIC DEVICES BASED ON PHOTO-INDUCED STEP GROWTH POLYMERIZATION
申请人:Medina Arturo Norberto
公开号:US20110269869A1
公开(公告)日:2011-11-03
The invention provide a new lens curing method for making hydrogel contact lenses. The new lens curing method is based on actinically-induced step-growth polymerization. The invention also provides hydrogel contact lenses prepared from the method of the invention and fluid compositions for making hydrogel contact lenses based on the new lens curing method. In addition, the invention provide prepolymers capable of undergoing actinically-induced step-growth polymerization to form hydrogel contact lenses.
[EN] A PROCESS FOR PREPARING AN OPTICALLY ACTIVE CINEOLE DERIVATIVE<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN DÉRIVÉ DE CINÉOLE OPTIQUEMENT ACTIF
申请人:BASF AGRO BV
公开号:WO2018210662A1
公开(公告)日:2018-11-22
The present invention relates to a process for preparing optically active 1,4-cineole derivatives by enzymatic resolution and enantiomerically pure optically active 1,4-cineole derivatives of purity greater than 99.9 % that have been prepared by this process. The present invention further relates to a process for preparing 7-oxabicyclo[2.2.1]heptane derivatives from the enantiomerically pure optically active 1,4-cineole derivatives.
Process for preparing vinyl substituted beta-diketones
申请人:Southard E. Glen
公开号:US20060069288A1
公开(公告)日:2006-03-30
A process for preparing vinyl substituted beta-diketones includes reacting a halogen-containing beta-diketone with an olefin in a reaction zone under Heck coupling reaction conditions in the presence of a catalyst, a base, and an organic phosphine to provide a vinyl substituted beta-diketone product.