Carboxylic acid chlorides react with 2,4-bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane 2,4- disulfide to give the intermediates 2a,b; 2'a,b) which are useful as thioacylating agents. Compounds 2 react with amines under mild conditions to give the corresponding thioamides....
一,syllabus 1 recall the reaction by which benzoic acid can be produced: (a) reaction of an alkylbenzene with hot alkaline KMnO4 and then dilute acid, exemplified by methylbenzene 2 describe the reaction of carboxylic acids with PCl3 and ...
On the other hand, the accumulated molar amount of hydrogen gas becomes an alternative way to estimate the carboxylic acid corrosion potential. 展开 关键词: Carboxylic acids Corrosion Decomposition Dissolution Hydrogen Iron Naphthalene Reaction kinetics ...
derivatives of quinoxaline-2-carboxylic acid 1,4-dioxide; antimicrobial activity; drug resistance; M. tuberculosis; M. smegmatis mutants1. Introduction Tuberculosis (TB), an infectious disease caused by the pathogen Mycobacterium tuberculosis, remains a significant global health challenge. When patients ...
3-Hydroxy-1-AdaMantane Carboxylic Acid 1.2 Synonyms (5R,7R)-3-Hydroxy-1-adamantanecarboxylate; 1-Adamantanecarboxylic acid; 1-carboxy-3-hydroxyadamantane; 1-Hydroxy-3-Adamantane Carboxylic Acid; 1-HYDROXYADAMANTANE-3-CARBOXYLIC ACID; 3-Carboxyadamantan-1-ol; 3-Hydroxy-1-Adamantanecarboxylic Acid; ...
The mechanism of action in chemical synthesis is dependent on the specific reaction being carried out and the desired product. Storage Conditions: Store in a cool and dry place. View all 4. Safety and Handling4.1 Specification The 3-Morpholinecarboxylic acid with the cas number 77873-76-8 ...
1. Acid chlorides enter into the Dakin-West reaction with α -N-acylamino acids in a pyridine medium via intermediate stages of formation of the azlactone and its C-acylation. 2. Upon reaction with α -N-acylamino acids in pyridine (100°, 1-1.5 or at 20°, 20 h) acid chlorides give...
该中间体受热脱水和水解得到不饱和羧酸 The acetic anhydride loses the hydrogen atom under the alkali function, the production acetic anhydride anoin, this anoin and the benzene has the nucleophilic addition reaction to obtain the carboxyl group acid anhydride intermediate, this intermediate being heated...
Reaction characteristics: BODIPY 493/503 染料为明亮的绿色荧光染料,激发和发射波长与荧光素 (FITC) 或 Alexa Fluor 488 染料相似。它具有高消光系数和荧光量子产率,对溶剂极性和 pH 值的变化相对不敏感。与高水溶性荧光基团 Alexa Fluor 488 染料和荧光素 (FITC) 不同,BODIPY 染料具有独特的疏水性,适用于染色脂...
-4-bromo-1-naphthoic acid can be prepared by the reaction of 4-bromo-1-naphthoic acid. - The specific preparation method can be 4-bromo-1-naphthalene and excess formic acid reaction at the appropriate temperature and reaction time, and then crystallization purification to obtain the product. ...