amide formationesterification, transesterificationThe reaction of trichloroisocyanuric acid (TCICA) and triphenylphosphine in the presence of a carboxylic acid results in the in situ formation of the corresponding acid chloride under mild conditions. Subsequent addition of amines or alcohols, in the ...
Use of bimetallic catalysts in a process for the hydrogenation of amides of carboxylic acids from renewable raw materials such as, for example, 2 - pyrrolidone, succinimide, milk acid amide and fatty acid amides, with hydrogen to the corresponding amines can be hydrogenated... I Shuklov,J Schu...
摘要: An improved one-pot procedure for the preparation of N-acylbenzotriazoles involves mild reaction conditions and allows the preparation of several derivatives not accessible by the previously reported methods. 关键词: N-acylbenzotriazole Carboxylic acid Benzotriazole Thionyl chloride Acylation reagent ...
Eventually, you should hit a plateau where you see X% amide and X% carboxylic acid, then add more reagent, see if that ratio changes, and assuming it doesn't change you can extrapolate amounts based on that. This won't give you ratio of acid chloride to mixed anhydride, but if you ...
carboxylic acid esters (benzene compoundsoxadiazole derivativesTreatment of 螖 2-1,2,4-oxadiazolines (4,5-dihydro-1,2,4-oxadiazoles), readily formed by cycloaddition of nitrite oxides to imines, with potassium TERT-butoxide leads to cycloreversion of the resulting anions to give a nitrite and ...
For seeking high enantiopurity, the previously reported thermal asymmetric catalysis is usually carried out at low temperature sometimes with limited yield, that is, the high enantiomeric excess (ee) usually at the cost of high yield. Thus, the achieving
aminocarboxylic acid amide derivatives, and to methods of using same in the field of general health care, for example, to improve resistance to stress, improve production of desired characteristics or useful products in animals, to increase weight gain, prevent diseases caused by pathogens, and to...
compounds, eg aminocarboxylic acid amide derivatives, and to methods of using same in the field of general health care, for example, to improve resistance to stress, improve production of desired characteristics or useful products in animals, to increase weight gain, and to decrease feed ...
19. A process according to claim 18, wherein the nucleophilic reagent is sodium methoxide. 20. A process according to claim 1, wherein the hydrogen gas is circulated through the amide. 21. A process for preparing an amine of the formula: ##STR14## wherein R1, R2and R3are independently...
ChemInform Abstract: A New Mild Method for the Cleavage of the Amide Bond: Conversion of Secondary and Tertiary Amides to Esters.amide formation, amide hydrolysisesterification, ester hydrolysiscarboxylic acid esters (acyclic compounds)carboxylic acid esters (benzene compounds)...