Patent Number: 8,871,954

Title: Process for the preparation of alditol acetals

Abstract: The present invention is directed to a process for the preparation of 1,3:2,4-bis (4-methylbenzylidene) sorbitol (MDBS) and 1,3:2,4-bis (4-dimethylbenzylidene) sorbitol (DMDBS) by dehydrocondensating an aldehyde and an alditol using a hydrophobic ionic liquid as an acid catalyst. The ionic liquid used in the accordance with the process of the present invention is a phosphonium ion based ionic liquid.

Inventors: Aduri; Pavankumar (Maharashtra, IN), Uppara; Parasu Veera (Maharashtra, IN)

Assignee: Reliance Industries Limited

International Classification: C07D 323/04 (20060101)

Expiration Date: 2018-10-28 0:00:00