Method for producing phenothiazinium compounds

US7101997B2 · kind B2 · utility

Assignee

• HONEYWELL INTERNATIONAL INC. · US

Inventors

• Suzanne Wassmann-Wilken · Hannover, DE
• Reinhard Knieps · Hannover, DE
• Thomas Potrawa · Seelze, DE
• Andreas Kanschik-Conradsen · Garbsen, DE
• Joachim Schulz · Stuttgart, DE
• Christian Werner · Hannover, DE

Key dates

• Filing date: Oct 7, 2004
• Grant date: Sep 5, 2006
• Expiry date: Oct 7, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B67/0071
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for producing a phenothiazinium compound comprising the step of: reacting phenothiazine, in the presence of a halogen, with at least one amine selected from the group consisting of:wherein Z is CH2, O, S, SO2, NH, NCH3, NC2H5, NCH2CH2OH or NCOCH3, and R1 and R2 are each independently linear or branched CnH2nY.