Process for the manufacture of alkenones

US8440865B2 · kind B2 · utility

Assignee

• SOLVAY SA · BE

Inventors

• Max Braun · Großburgwedel, DE
• Stefan Palsherm · Barsinghausen, DE
• Uta Claassen · Hohenhameln, DE
• Alain Lambert · Beauvechain, BE

Key dates

• Filing date: Jul 5, 2010
• Grant date: May 14, 2013
• Expiry date: Jul 5, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C45/41
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Process for preparing an alkenone, which comprises the following steps: (a) providing a halogenated precursor of the alkenone; and (b) eliminating the hydrogen halide from said precursor to form the alkenone by a thermolysis treatment selected from the group consisting of flash thermolysis, vacuum thermolysis, and thermolysis under stripping with inert gas.