Process for preparing cyclopentyl bromide

US5744663A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Heinz Landscheidt · Duisburg, DE
• Alexander Klausener · Neunburg vorm Wald, DE
• Matthias Stenger · Monheim, DE
• Paul Wagner · Mülheim an der Ruhr, DE

Key dates

• Filing date: Jul 5, 1996
• Grant date: Apr 28, 1998
• Expiry date: Jul 5, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C17/08
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

It has been found that cyclopentene and hydrogen bromide can be continuously reacted in a simple manner to give cyclopentyl bromide in good yields and good selectivities if the reaction is carried out in the presence of a heterogeneous catalyst. The reaction can be carried out continuously and unreacted cyclopentene and possibly other constituents can be recirculated to the reaction.