Process for the preparation of chlorine-substituted olefins

US5569774A · kind A · utility

Assignee

• BASF SE

Inventors

• Bernd Schaefer · Dierbach, DE
• Irene Troetsch-Schaller · Bissersheim, DE

Key dates

• Filing date: Sep 20, 1994
• Grant date: Oct 29, 1996
• Expiry date: Sep 20, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D303/48
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Chlorine-substituted olefins I ##STR1## (R.sup.1 =organic radical; R.sup.2 =--CN, --CO--R.sup.3, --CO--S--R.sup.3, --CO--O--R.sup.3 --CO--N(R.sup.4,R.sup.5); R.sup.3 =organic radical; R.sup.4, R.sup.5 =H, organic radical) are prepared by reacting oxiranes II ##STR2## in the presence of a carboxamide (IIIa) or of a lactam (IIIb) in liquid phase with a chlorinating agent (IV). The products I are important intermediates for dyes, drugs and crop protection agents.