Solvent-Free Esterification of Carboxylic Acids and Alcohols in the Presence of Silphos [PCl<sub>3-n</sub>(SiO<sub>2</sub>)<sub>n</sub>] as a Heterogeneous Phosphine Reagent
Abstract An efficient solvent-free method for the preparation of esters from various aromatic and aliphatic acids with primary, secondary, and tertiary alcohols using a heterogeneous phosphinereagent, silphos [PCl3-n(SiO2)n], in good yields is reported. GRAPHICAL ABSTRACT
Chemically Modified Lipase from
<i>Thermomyces lanuginosus</i>
with Enhanced Esterification and Transesterification Activities
作者:Jennifer Noro、Artur Cavaco‐Paulo、Carla Silva
DOI:10.1002/cctc.202101050
日期:2021.11.8
The chemical modification of lipasefromThermomyceslanuginosus using dodecyl aldehyde as linker, showed to beneficially improve its catalytic activity. The results reported in this paper, showed an outstanding increase of its activity towards esterification and transesterification reactions, comparing with the native form, being the most pronounced improvement obtained when using the longest alcohol
(EN) There is disclosed compounds and pharmaceutical compositions that are a resolved R or S (preferably R) enantiomer of an w-1 alcohol of a straight chain alkyl (C5-8) substituted at the 1-position of 3,7-disubstituted xanthine. The inventive compounds are effective in modulating cellular response to external or $i(in situ) primary stimuli, as well as to specific modes of administration of such.(FR) On décrit des composés et des compositions pharmaceutiques qui constituent un énantiomère dédoublé R (de préférence) ou S d'un alcool w-1 d'un alkyle à chaîne droite (C5-8) substitué à la position 1 de la xanthine disubstituée aux positions 3-7. Les composés inventés sont efficaces pour moduler des réactions cellulaires à des stimuli primaires externes ou $i(in situ), ou à des modes d'administration spécifiques les concernant.
CURABLE RESIN COMPOSITION FOR MOLDED BODIES, MOLDED BODY, AND PRODUCTION METHOD THEREOF
申请人:Nakamura Junichi
公开号:US20100256313A1
公开(公告)日:2010-10-07
The present invention provides a curable resin composition which exhibits the following properties : excellent basic performances such as heat resistance; sufficient optical characteristics such as transparency; and excellent demoldability when a molded body of the composition is demolded at the time of molding. The present invention further provides a molded body obtainable by molding the curable resin composition and a production method thereof. A curable resin composition for molded bodies, including a thermocurable resin, wherein the curable resin composition for molded bodies includes at least one compound selected from the group consisting a compound having a boiling point of 260° C. or less at one atmospheric pressure, a silicon compound having a polyoxyalkylene chain, a silicon compound having an aryl group, and a silicon compound having a polyoxyalkylene chain and an aryl group.
An agricultural composition with reduced toxicity to fishes and shellfishes
申请人:Takeda Chemical Industries, Ltd.
公开号:EP0189377A2
公开(公告)日:1986-07-30
Agricultural formulation with reduced toxicity to fishes and shelifishes, characterized by comprising a lipophilic agriculturally active ingredient (I) and an organic compound (II) having a partition coefficient to the said compound (I) in water of no less than 102 and a process for the production of the said formulation.