[EN] PYRIDAZINONE DERIVATIVES AND USE THEREOF AS P2X7 RECEPTOR INHIBITORS<br/>[FR] DÉRIVÉS DE PYRIDAZINONE ET LEUR UTILISATION COMME INHIBITEURS DU RÉCEPTEUR P2X7
申请人:NISSAN CHEMICAL IND LTD
公开号:WO2009057827A1
公开(公告)日:2009-05-07
Novel pyridazinone compounds of formula (I), which inhibit the purinergic P2X7 receptor and are useful for prevention, therapy and improvement of inflammatory and immunological diseases.
The present invention provides a (meth)acrylate manufacturing method characterized in that when manufacturing a (meth) acrylate by an ester exchange reaction between an alcohol and a monofunctional (meth)acrylate using catalyst A and catalyst B together, contact treatment of the ester exchange reaction product with adsorbent C is performed. Catalyst A: One or more kinds of compounds selected from a group consisting of cyclic tertiary amines with an azabicyclo structure and salts or complexes thereof, amidine and salts or complexes thereof, compounds with a pyridine ring and salts or complexes thereof, phosphines and salts or complexes thereof, and compounds with a tertiary diamine structure and salts or complexes thereof. Catalyst B: One or more kinds of compounds selected from a group consisting of compounds comprising zinc. Adsorbent C: One or more kinds of compounds selected from a group consisting of oxides and hydroxides comprising at least one of magnesium, aluminum and silicon.
[Problem] The purpose of the present invention is to obtain a multifunctional (meth)acrylate with good yield by an ester exchange reaction of a polyhydric alcohol such as pentaerythritol or dipentaerythritol with a monofunctional (meth)acrylate.
[Solution] A multifunctional (meth)acrylate manufacturing method characterized in that when manufacturing a multifunctional (meth)acrylate by an ester exchange reaction of a polyhydric alcohol with a monofunctional (meth)acrylate, catalyst (A) and catalyst (B) are used together. Catalyst (A): One or more kinds of compounds selected from a group consisting of cyclic tertiary amines with an azabicyclo structure or salts or complexes thereof, amidines or salts or complexes thereof, and compounds with a pyridine ring or salts or complexes thereof. Catalyst (B): One or more kinds of compounds selected from a group consisting of zinc-containing compounds.
A method for producing a (meth) acrylate comprises transesterification reaction of an alcohol and a monofunctional (meth) acrylate with catalysts in combination being cyclic tertiary amines having an azabicyclo structure and compounds containing zinc, separating a solid that contains the catalysts from a reaction product containing a (meth) acrylate, and producing a (meth) acrylate by transesterification reaction of an alcohol and a monofunctional (meth) acrylate, while using the recovered solid catalyst.
USE OF SUBSTITUTED 1-(ARYL ETHYNYL)-, 1-(HETEROARYL ETHYNYL)-, 1-(HETEROCYCLYL ETHYNYL)- AND 1-(CYCLOALKENYL ETHYNYL)-CYCLOHEXANOLS AS ACTIVE AGENTS AGAINST ABIOTIC PLANT STRESS
申请人:BAYER CROPSCIENCE AG
公开号:US20150305334A1
公开(公告)日:2015-10-29
The invention relates to the use of substituted 1-(arylethynyl)-, 1-(heteroarylethynyl)-, 1-(heterocyclylethynyl)- and 1-(cycloalkenylethynyl)cyclohexanols or salts thereof
where the radicals in the general formula (I) correspond to the definitions given in the description,
for enhancing stress tolerance in plants to abiotic stress and/or for increasing plant yield.