Despite the fact that an acid anhydride is reacted with a primary amine in the presence of both water and an acid, the reaction is materially unaffected by acid-catalyzed hydrolysis of the anhydride. Thus a reaction is provided which eliminates the handling and processing problems associated with...
It was observed that heating 215 in acetic anhydride and benzene at reflux resulted in only monoacetylation. (80) Treatment of (3,5-dichloropyridin-2-yl)hydrazine 217 with propionic acid anhydride results in the rapid formation of the corresponding hydrazide 218 in good yield (Equation (81)) ...
G1utaric Acid utaric acid a,-Propanedicarboxylicacid glutaric Glutarsaure 1,3-PROPANEDICARBOXYLIC ACID 1,5-PENTADIOIC ACID 1,5-PENTANEDIOIC ACID GLUTARIC ACID AND ANHYDRIDE GLUTARIC ACID DICARBOXYLIC ACID C5 N-PYROTARTARIC ACID PROPANE-1,3-DICARBOXYLIC ACID PENTANEDIOIC ACID Pentandioic acid RARE...
follows: (1) from benzaldehyde, anhydrous sodium acetate and acetic anhydride in the presence of pyridine (Perkin reaction); (2) from benzaldehyde and ethyl acetate (Claisen condensation); (3) from benzaldehyde and acetylene chloride; (4) by oxidation of benzylidene acetone with sodium hypochlorite...
The N-substituted maleimides were usually synthesized from a two-step route, in which maleic anhydride was mixed with a primary amine to produce a maleamic acid, which was then dehydrated to form a maleimide. The substituents have minimal effect on the electron-deficient nature of maleimides, ...
from reaction of a primary or secondary amine (an amino-hydroxyaromatic acid) with an alkene/maleic anhydride or an alpha olefin/maleic anhydride copolymer; for coffee or a red acid dye stain (KoolAid) on polyamide carpeting, upholstery fabric, wool and other textiles; maleic anhydride-styrene ...
The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol. Chemical ...
To a solution of the residue and indole (665 mg, 5.67 mmol) in tetrahydrofuran (17 ml) was added benzeneseleninic acid anhydride (681 mg, 1.89 mmol) at room temperature. After stirring at 45 °C for 1 h, the reaction mixture was quenched with saturated aqueous sodium bicarbonate solution...
Folic acid PEG amine, also called Folate PEG amine, is one of Nanocs reactive folic acid PEG derivatives with a primary amine group. Primary amine can react with a variety of functional groups such as succinimidyl ester (NHS), carboxylic acids (COOH), anhydride and many others. This reaction...
in the presence of a tertiary amine (pyridine, triethylamine, picoline etc.) in an inert organic solvent (chloroform, methylene chloride, diethyl ether, THF etc.) or without a solvent at a temperature of from 0° C. to 40° C., and then reacting the obtained mixed acid anhydride with ...