Patent · US Expired

Process for preparing 1,3-diketones

US6310258A · kind A · utility

0Cited by

2References

17Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Dominik Dempf · Mehring, DE
Thomas List · Neumarkt-Sankt Veit, DE
Wolfgang Deinhammer · Burghausen, DE
Georges Heyen · Embourg, BE

Key dates

Filing date	Jul 31, 2000
Grant date	Oct 30, 2001
Priority date	—
Expiry date	Jul 31, 2020

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2219/00155
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention provides a process for preparing 1,3-diketones by rearrangement of the isomeric enol ester in a tube reactor comprising a heated portion and an unheated insulated portion which can optionally be provided with cooling means. The unheated portion of the reactor has a higher volume to surface ratio than the heated portion of the reactor. The reaction can be carried out adiabatically in the unheated portion of the reactor. The process and apparatus provide higher yields and selectivity to the 1,3-diketones.

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