Process for the preparation of dihydroxy esters

Details Process for the preparation of dihydroxy esters Process for the preparation of dihydroxy esters

C - Chemistry, Metallurgy

07

C

C07C 67/44 (2006.01) C07C 69/675 (2006.01)

Patent

CA 2053233

Process is disclosed for the preparation of dihydroxy esters such as hydroxypivalyl hydroxypivalate from hydroxy aldehydes such as hydroxypivaldehyde by contacting said hydroxy aldehydes with low levels of at least one elemental metal selected from a defined group of metals. Reaction product is readily recovered without the need for extensive catalysts neutralization and/ or removal procedures.

Méthode de préparation de dihydroxyesters, comme l'hydroxypivalate d'hydroxypivalyle à partir d'hydroxyaldéhydes, notamment l'hydroxypivaldéhyde, par contact des hydroxyaldéhydes avec de faibles concentrations d'au moins un métal élémentaire, choisi dans un groupe déterminé de métaux. Les produits de réaction sont facilement récupérés sans qu'il soit nécessaire de recourir à une neutralisation et (ou) à une élimination catalytiques poussées.

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