Title:
POLYCYCLIC DYES
Document Type and Number:
WIPO Patent Application WO1994012577
Kind Code:
A3
Abstract:
PCT No. PCT/GB93/02296 Sec. 371 Date May 25, 1995 Sec. 102(e) Date May 25, 1995 PCT Filed Nov. 8, 1993 PCT Pub. No. WO94/12577 PCT Pub. Date Jun. 9, 1994Described herein is a process for preparing a polycyclic dye which comprises reacting a compound of the Formula (2): Formula (2) with a compound of the formula: Formula (3) wherein X and X1 are, for example, hydrogen or halogen, X2 and X3 are halogen and Z is -CN, -CO2R or -CONR1R2 where R, R1 and R2 are, for example, alkyl. Processes for making compounds of Formulas (3) and (4) are also disclosed.
Inventors:
BENTLEY STEPHEN JOHN
KENYON RONALD WYNFORD
MILNER DAVID JOHN
KENYON RONALD WYNFORD
MILNER DAVID JOHN
Application Number:
PCT/GB1993/002296
Publication Date:
August 04, 1994
Filing Date:
November 08, 1993
Export Citation:
Assignee:
ZENECA LTD (GB)
International Classes:
C07C67/307; C07C69/65; C07C205/56; C07C231/12; C07C233/02; C07C233/11; C07C255/32; C07C255/35; C07D493/04; C09B57/00; (IPC1-7): C09B57/00; C07C69/05; C07C233/02; C07C255/35; C07D493/04
Foreign References:
| EP0252406A2 | 1988-01-13 | |||
| FR2343785A1 | 1977-10-07 | |||
| EP0518493A1 | 1992-12-16 | |||
| EP0075356A1 | 1983-03-30 | |||
| EP0075355A1 | 1983-03-30 |
Other References:
CHEMICAL ABSTRACTS, vol. 91, no. 1, 2 July 1979, Columbus, Ohio, US; abstract no. 5014w, PLAUMAN ET AL: "alpha-dichlorobenzyl cyanide,a nieuw reagent for aromatic chlorination" page 470;
Download PDF:
Previous Patent: ORGANIC MATERIAL FORMED FROM COIR DUST
Next Patent: A PROCESS FOR THE TREATMENT OF CELLULOSIC FABRICS WITH CELLULASES
Next Patent: A PROCESS FOR THE TREATMENT OF CELLULOSIC FABRICS WITH CELLULASES