Process for the preparation of alkyl 3,3-dialkoxypropionates

Details Process for the preparation of alkyl 3,3-dialkoxypropionates Process for the preparation of alkyl 3,3-dialkoxypropionates

C - Chemistry, Metallurgy

07

C

C07C 67/46 (2006.01) C07C 67/327 (2006.01) C07C 69/708 (2006.01) C07C 69/734 (2006.01)

Patent

CA 2700240

The present invention relates to a continuous process for preparing alkyl 3,3- dialkoxy-propionates of the formula (RO)2CHCH2CO2R, wherein R is C1-6 alkyl, by reacting ketene with an ortho formate of formula (RO)3CH in the presence of an acidic catalyst, characterized in that the reaction is carried out in a loop reactor.

La présente invention porte sur un procédé continu pour préparer des 3,3-dialcoxypropionates d'alkyle représentés par la formule (RO)2CHCH2CO2R, où R représente alkyle en C1-8, par réaction d'un cétène avec un orthoformiate de formule (RO)3CH en présence d'un catalyseur acide, caractérisé en ce que la réaction est effectuée dans un réacteur à boucle.

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