Process for the preparation of carboxylic acid succinimidyl...

Details Process for the preparation of carboxylic acid succinimidyl... Process for the preparation of carboxylic acid succinimidyl...

C - Chemistry, Metallurgy

07

K

C07K 1/08 (2006.01) C07C 231/02 (2006.01) C07C 233/83 (2006.01) C07D 207/46 (2006.01) C07D 401/12 (2006.01)

Patent

CA 2201688

Process for the preparation of carboxylic acid succinimidyl esters by reaction of N-hydroxysuccinimide with a carboxylic acid and a halophosphoric acid ester of the formula (see fig. I) in which R1 and R2 are identical or different and are a C2- to C6-alkyl radical or a phenyl radical, or R1 and R2 together form a C6-aryl radical, in the presence of a base in a diluent at a temperature of 0°C up to 100°C and isolation of the corresponding carboxylic acid succinimidyl ester.

Procédé de préparation d'esters succinimidyliques d'acides carboxyliques par réaction de N-hydroxysuccinimide avec un acide carboxylique et un ester d'acide halophosphorique de formule (voir fig. I) dans lequel R1 et R2 sont identiques ou différents et représentent un radical alkyle en C2-C6 ou un radical phényle, ou R1 et R2 forment ensemble un radical aryle en C6, en présence d'une base dans un diluant à une température de 0 degré C jusqu'à 100 degrés C et isolement de l'ester succinimidylique de l'acide carboxylique correspondant.

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