Patent · US Expired

Process for the preparation of 1,4-dioxane-2,5-diones

US5326887A · kind A · utility

23Cited by

7References

15Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Robert Di Cosimo · Rockland, US
John R. Moran · Kennett Square, US
Charles E. Nakamura · Claymont, US

Key dates

Filing date	Feb 14, 1992
Grant date	Jul 5, 1994
Priority date	—
Expiry date	Feb 14, 2012

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D319/12
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

This invention relates to a process for preparing 1,4-dioxane-2,5-diones comprising reacting an .alpha.-hydroxy acid oligomer or an ester of an .alpha.-hydroxy acid oligomer over a fixed bed catalyst system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.