Telescoping synthesis of 2-methoxymethyl-P-phenylenediamine

US9688609B2 · kind B2 · utility

Assignee

• NOXELL CORPORATION · US

Inventors

• Heike Gertrud Abel · Eiterfeld, DE
• Armin Osan · Darmstadt, DE
• Garry Steven Garrett · Lancaster, US
• John Michael Gardlik · Cincinnati, US
• Bryan Patrick Murphy · Loveland, US
• Markus Speckbacher · Aschaffenburg, DE
• Ingo Weber · Basel, CH

Key dates

• Filing date: Oct 29, 2015
• Grant date: Jun 27, 2017
• Expiry date: Oct 29, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/582
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A telescoping process for the preparation of 2-methoxymethyl-p-phenylenediamine, a cosmetically acceptable salt thereof, or mixture thereof. The process according to the present invention is a particularly cost effective process in that it avoids sophisticated chemical steps which requires special equipment or expensive catalysts and in that it comprises a recycling step of one of the starting materials, namely 2-hydroxymethylaniline.