Process for the synthesis of halogenated cyclic compounds

US8431710B2 · kind B2 · utility

Assignee

• SOLVAY SA · BE

Inventor

• Max Braun · Großburgwedel, DE

Key dates

• Filing date: Sep 25, 2009
• Grant date: Apr 30, 2013
• Expiry date: Sep 25, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D239/36
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the manufacture of a cyclic compound of formula (I)which comprises (a) adding an acid halide of formula R1—C(O)—X, to a vinyl ether of formula (II): CH2═CH—OR2, to produce an addition product, and (b) reacting the addition product with a compound of formula (III): Y-A-Z; wherein R1 is a halogenated alkyl group; wherein X is fluorine, chlorine, or bromine; wherein R2 is an alkyl group, an aralkyl group, or an aryl group; wherein Z and Y designate independently carbon or a heteroatom; and wherein A is a linking group between Z and Y comprising 0, 1, 2 or 3 atoms in the cycle.