Process for producing carboxylated compound

Details Process for producing carboxylated compound Process for producing carboxylated compound

C - Chemistry, Metallurgy

07

D

C07D 313/04 (2006.01) C07B 41/08 (2006.01) C07B 41/12 (2006.01) C07C 51/285 (2006.01) C07C 63/06 (2006.01) C07C 67/42 (2006.01) C07D 309/30 (2006.01) C07D 315/00 (2006.01)

Patent

CA 2059689

A process for producing a carboxylated compound, which comprises reacting a carbonyl compound with hydrogen peroxide in the presence of an organo-arsenic acid of the formula (1), Image ......(1) wherein: R1 is a C1-C12 alkyl group which may be substituted or an aryl group which may be substituted, R2 is a hydroxyl group or the same group as that which defines R1, or alternatively, R1 and R2 may bond to each other to form a five-membered or six-membered ring together with As atoms to which these groups are bonded, and the substituent(s) substituted on the above groups is/are selected from hydroxyl, carboxyl, carbonyl, sulfonyl, sulfonium, an amino group, an ammonium group, an alkyl group, an alkoxyl group and a halogen atom, while a water concentration in a reaction system is maintained at not more than 2 % by weight, thereby to form a corresponding carboxylated compound.

Méthode pour produire un composé carboxylé, consistant à faire réagir un composé carbonylé avec du peroxyde d'hydrogène en présence d'un acide organoarsénique de formule (1) Image - où R1 est un alkyle C1-C12 avec ou sans substitution, ou un aryle avec ou sans substituant, R2 est un hydroxyle ou le même groupe que celui défini par R1, ou encore R1 et R2 peuvent être liés l'un à l'autre pour former un cycle de cinq ou six chaînons avec les atomes d'As auxquels ils sont liés; les substituants dans les radicaux ci-dessus sont choisis parmi un atome d'halogène ou un groupe hydroxyle, carboxyle, carbonyle, sulfonyle, sulfonium, un groupe amino, un groupe ammonium, un groupe alkyle et un groupe alkoxy - la concentration d'eau dans le système réactionnel ne doit pas dépasser 2 % en poids, de façon à obtenir le composé carboxylé correspondant.

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