are synthesized by reacting an aldehyde having the structural formula: R 1 CHR 2 CHO wherein R 1 and R 2 are as defined above, with an alcohol having the structural formula: R 3 OH, wherein R 3 is as defined above, and an amide having the structural formula: R 4 CONH 2 wherein...
The alcohol-flush reaction occurs in Asians who inherit the mutantALDH2*2 allele that produces an inactive aldehyde dehydrogenase enzyme. In these individuals, high blood acetaldehyde levels are believed to be the cause of the unpleasant symptoms that follow drinking. We measured the alcohol eliminat...
Reacting an aliphatic dialdehyde wtih an aliphatic mono- or dialcohol while removing water by distillation; continuously distilling reaction mixture in a d... The invention relates to a process for obtaining a pure aliphatic dialdehyde monoacetal by reaction of the corresponding aliphatic dialdehyde...
In the production of 6-30C aldehydes and/or alcohols (A) by hydroformylation, the reaction mixture (olefins, synthesis gas and catalysts, or their precursors) is introduced into the reactor through a nozzle with adjustable transmission cross-section. Reaction is at 120-210 deg C and 100-400 ...
Aldehyde-alcohol ratio of the amount of substance of effects on the yield of the reaction 翻译结果4复制译文编辑译文朗读译文返回顶部 phenolic substances that Isopropyl Alcohol amount to more than one of the affect response rates 翻译结果5复制译文编辑译文朗读译文返回顶部 The aldehyde alcohol material ...
This reaction involves disproportionation of thealdehyde. 这个反应就是醛的歧化作用. 辞典例句 The process includes hydroxylation, self packing of APTES and terephthalicaldehydepacking. 其置备方法主要包括羟基化 、 APTES的自组装和对苯二甲醛的组装三步. ...
the reaction of the indole derivatives with aromatic aldehydes; for example, tryptophan andp-dimethylaminobenzaldehyde in H2SO4give a red-violet color useful in assaying proteins for tryptophan content. Synonym(s):Ehrlich reaction Farlex Partner Medical Dictionary © Farlex 2012 ...
PURPOSE: To obtain an enzyme capable of catalyzing the oxidative reaction for producing an aldehyde, a carboxylic acid and a ketone from an alcohol and an aldehyde, especially producing 2-keto-L-gluconic acid (2-KGA) from L-sorbose through L-sorbosone. ;CONSTITUTION: This alcohol/aldehyde de...
Acetaldehyde levels increase in individuals carrying this allele, resulting in an unpleasant reaction from drinking alcohol. Therefore, this polymorphism may deter these individuals from drinking, thus protecting these individuals from alcohol abuse. This polymorphism may also increase the risk of both ...
Erythrocyte aldehyde dehydrogenase activity was determined in 44 chronic alcoholic patients within 1836 hr after discontinuation of chronic alcohol intake and in 20 nonalcoholic controls. The enzyme activity was decreased to 4.98 ± 0.52 mlU/mg of protein in the alcoholics as compared with a value of...