[EN] SUBSTITUTED THIADIAZOLYL DERIVATIVES AS DNA POLYMERASE THETA INHIBITORS [FR] DÉRIVÉS SUBSTITUÉS DE THIADIAZOLYLE COMME INHIBITEURS DE L'ADN POLYMÉRASE THÊTA
[EN] NOVEL GLYCEROL DEHYDRATION METHODS AND PRODUCTS THEREOF<br/>[FR] NOUVEAUX PROCÉDÉS DE DÉSHYDRATATION DE GLYCÉROL ET PRODUITS DE CEUX-CI
申请人:UNIV TENNESSEE RES FOUNDATION
公开号:WO2015168683A1
公开(公告)日:2015-11-05
Methods and systems for suppressing coking in dehydration reactions catalyzed by solid acids. Dehydration reactions catalyzed by one or more solid acid catalysts can be performed in the presence of a super critical carbon dioxide medium which prevents or minimizes coking of the solid acid catalysts. Methods and systems are provided for producing glycerol products, such as acrolein, acrylic acid, acetol, by performing a dehydration reaction of glycerol using one or more solid acid catalysts in the presence of a super critical carbon dioxide reaction medium. Such methods and systems can be run for extended periods of time, or continuously, due to catalyst regeneration and/or recycling. Such methods and systems are configured to produce glycerol products from crude glycerol feedstock with minimal pretreatment.
The present invention provides compound of Formula (I)
biologically active metabolites, pro-drugs, isomers, stereoisomers, solvates, hydrates and pharmaceutically acceptable salts thereof wherein the variables are defined herein. The compounds of the invention are useful for treating immunological conditions.
[EN] DEOXYNOJIRIMYCIN DERIVATIVES AS GLUCOSIDASE INHIBITORS<br/>[FR] DÉRIVÉS DE DÉSOXYNOJIRIMYCINE EN TANT QU'INHIBITEURS DE GLUCOSIDASE
申请人:EMERGENT PRODUCT DEV GAITHERSBURG INC
公开号:WO2022011211A1
公开(公告)日:2022-01-13
The present application provides novel iminosugars and their use as glucosidase inhibitors. The present inventors have discovered that certain deoxynojirimycin derivatives may be effective in inhibiting glucosidases. In particular, such deoxynojirimycin derivatives may be useful for treating a disease or condition where inhibiting glucosidase may be important.
Production of compounds to be used as fuel additive: Glycerol conversion using Nb-doped MgAl mixed oxide
作者:Juber Souza、Priscila M.T.G. Souza、Patterson P. de Souza、Daniel L. Sangiorge、Vanya M.D. Pasa、Luiz C.A. Oliveira
DOI:10.1016/j.cattod.2013.03.040
日期:2013.9
250 °C. Gas chromatography with massspectrometry (GC–MS) analysis of the reaction showed that diglycerol, ethers and ketone were the main products. The results strongly suggest that the glycerol conversion involves acid groups and oxidizing species generated upon reacting with H2O2 and niobium. Furthermore, catalytic tests monitored by electrospray massspectrometry (ESI-MS) suggest that ethers, such
用铌对水滑石的MgAl混合氧化物进行了改性,并在过氧化氢的存在下将其用作液相甘油转化的催化剂。氧化铌在250°C下通过非均相催化对甘油的转化表现出高活性。反应的气相色谱(GC-MS)分析表明,主要成分为甘油二酯,醚和酮。结果强烈表明,甘油转化涉及酸基和与H 2 O 2和铌反应生成的氧化物质。此外,通过电喷雾质谱(ESI-MS)监控的催化测试表明,甘油缩合过程中会形成醚,例如二,三和四甘油(m /z = 167、223、241和315)。使用反应产物作为汽油添加剂的初步测试表明,由于存在甘油转化形成的醚,辛烷值得以提高。
AQUEOUS POLYURETHANE RESIN DISPERSION AND PROCESS FOR PREPARING THE SAME
申请人:Nakamura Taku
公开号:US20110136976A1
公开(公告)日:2011-06-09
This is to provide an aqueous polyurethane resin dispersion which can form a tough coating film.
An aqueous polyurethane resin dispersion is obtained by dispersing an aqueous polyurethane resin, which is obtained by reacting (A) a polyurethane prepolymer obtained by reacting (a1) a polycarbonate polyol having no urethane bonding having an average molecular weight of 400 to 5000, and having 2.05 to 5 hydroxyl groups in average in one molecule, (b) a polyol compound having an acidic group and (c) a polyisocyanate, or obtained by reacting (a2) the polycarbonate polyol having no urethane bonding having an average molecular weight of 600 to 5000, and having 2.05 to 5 hydroxyl groups in average in one molecule, and having an acidic group, and (c) a polyisocyanate, and (B) a chain elongating agent having a reactivity with the isocyanate group of (A) the polyurethane prepolymer, being dispersed in an aqueous medium.