Method for producing sulfamate-carboxylate derivatives

Details Method for producing sulfamate-carboxylate derivatives Method for producing sulfamate-carboxylate derivatives

C - Chemistry, Metallurgy

07

C

C07C 313/06 (2006.01) C07C 303/36 (2006.01) C07C 303/40 (2006.01) C07C 311/07 (2006.01)

Patent

CA 2603418

Disclosed is a method for producing a compound (III), a salt thereof or a solvate of them by reacting a compound (I), a salt thereof or a solvate of them with a compound (II) in a toluene solvent in the presence of an additive such as water or an alcohol. Also disclosed is a method for producing a compound (IV) wherein the thus-obtained compound (III) is hydrolyzed if necessary, and then oxidized. (In the formulae, R1 represents a hydrogen, an optionally substituted lower alkyl, an optionally substituted aryl or an optionally substituted aryl-lower alkyl; and R2 represents an optionally substituted lower alkyl, an optionally substituted cycloalkyl or an optionally substituted aryl-lower alkyl.)

Il est exposé un procédé servant à produire un composé (III), un sel de celui-ci ou un solvate de ceux-ci en faisant réagir un composé (I), un sel de celui-ci ou un solvate de ceux-ci avec un composé (II) dans du toluène en tant que solvant et en présence d'un additif tel que de l'eau ou un alcool. Il est également exposé un procédé servant à produire un composé (IV) selon lequel le composé (III) ainsi obtenu est si nécessaire hydrolysé et ensuite oxydé. (Dans les formules, R1 représente un hydrogène, un alkyle inférieur facultativement substitué, un aryle facultativement substitué ou un aryl(alkyle inférieur) facultativement substitué ; et R2 représente un alkyle inférieur facultativement substitué, un cycloalkyle facultativement substitué ou un aryl(alkyle inférieur) facultativement substitué.)

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