Phenoxazine and phenothiazine dyes and leuco forms thereof

US4622395A · kind A · utility

Assignee

• Minnesota Mining and Manufacturing Company · US

Inventors

• Peter A. Bellus · Windom, US
• Roger A. Mader · Stillwater, US

Key dates

• Filing date: Oct 1, 1984
• Grant date: Nov 11, 1986
• Expiry date: Oct 1, 2004

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C1/49854
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Novel phenoxazine and phenothiazine dyes have the formula ##STR1## wherein X can be --S-- or --O--; PA0 each R can be the same or different and is independently selected from PA1 (1) hydrogen, PA1 (2) an unsubstituted aryl or alkyl group or these groups substituted by up to four groups selected from alkyl, alkoxy, cyano, hydroxy, halogen, nitro, mercapto, alkylsulfonyl, arylsulfonyl, and Z, where Z is as defined below, wherein all alkyl and alkoxy groups have 1 to 20 carbon atoms; and PA1 (3) Z, wherein Z can be ##STR2## wherein each Q can be the same or different and is independently selected from PA2 (1) hydrogen, PA2 (2) an unsubstituted aryl or alkyl group or these groups substituted by up to four groups selected from alkyl, alkoxy, cyano, hydroxy, halogen, nitro, mercapto, alkylsulfonyl, arylsulfonyl, and Z, where Z is as defined above, wherein all alkyl and alkoxy groups have 1 to 20 carbon atoms; and PA1 R' is the same or different and is independently selected from hydrogen, halogen, alkyl or alkoxy of 1 to 6 carbon atoms or these groups substituted by up to 3 halogen atoms; and PA1 A is an anion; with the proviso that R and L can have up to a total of 5 carbonyl and sulfon…