Process for the production of a dioxolane compound from crude glycerol

摘要

A process for the production of dioxolane compounds of formula (I):;;wherein R1 and R2 independently represent hydrogen or an alkyl chain from 1 to 10 carbon atoms; R3 and R4 independently represent hydrogen, an alkyl chain from 1 to 5 carbon atoms, or an alkyl chain from 1 to 5 carbon atoms which is endowed with one or more hydroxyl groups, such process comprising a reaction between crude glycerol and an aldehyde or a ketone, with a molar ratio of aldehyde:glycerol or ketone:glycerol from 3:1 to 20:1.

主权项

1. A process for the production of a dioxolane compound of formula (I): wherein: R1 and R2 independently represent hydrogen or an alkyl chain from 1 to 10 carbon atoms, and R3 and R4 independently represent hydrogen, an alkyl chain from 1 to 5 carbon atoms, or an alkyl chain from 1 to 5 carbon atoms which is endowed with one or more hydroxyl groups,
said process comprising a reaction between crude glycerol and an aldehyde or a ketone, with a molar ratio of aldehyde:glycerol or ketone:glycerol from 3:1 to 20:1,wherein, when said reaction is between said crude glycerol and said aldehyde, one of said groups R1 and R2 is hydrogen, while when said reaction is between said crude glycerol and said ketone, said groups R1 and R2 do not represent hydrogen.