Substituted cinnamic acids and cinnamic acid esters

US6455725B1 · kind B1 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Walter Lange · Cologne, DE
• Joachim Komoschinski · Neunburg vorm Wald, DE
• Guido Steffan · Odenthal, DE
• Ernst Kysela · Bensberg, DE

Key dates

• Filing date: Feb 13, 2001
• Grant date: Sep 24, 2002
• Expiry date: Feb 13, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/343
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to substituted cinnamic acids and cinnamic acid esters of formula (I), wherein X represents F, Cl or J and R1 and R2 are the same or different and represent hydrogen, an optionally substituted C1-C10-alkyl radical or an optionally substituted benzyl radical. Substituted indanone carboxylic acid esters are produced using said substituted cinnamic acid and cinnamic acid ester in a technically simple and non-dangerous manner as far as safety is concerned.