公开(公告)号：US3781302A

公开(公告)日：1973-12-25

申请号：US3781302D

申请日：1971-05-20

Applicant: HOECHST AG

Inventor： KELSTERBACH J ,  TROESTER H ,  FUCHS O ,  SPIETSCHKA E

IPC: C07D311/78 ,  C09B57/14 ,  C09K11/06 ,  C07D7/42 ,  C07D65/16

CPC classification number: C09K11/06 ,  C07D311/78 ,  C09B57/14

Abstract: MIXTURES OF ISOMERS OF BENZOXANTHENE OR BENZOTHIOXANTHENE DYESTUFFS OF THE GENERAL FORMULATE

X
8-R6-2,3-DIHYDRO-PHENALEN-7,6-YLENE)-)
WHEREIN X IS OXYGEN OR SULFUR, R AN OPTIONALLY SUBSTITUTED ALKYL GROUP, AN ACYL OR ARYLSULFONYL GROUP, R1 AND R2 ARE HYDROGEN OR HALOGEN ATOMS, ALKYL, ARYL, A CYL, ACYLOXY, CARBALKOXY, ALKOXY, NITRO, ALKYLTHIO OR ALKYLTHIO OR ALKYLSOLFONYL GROUPS OR THEY FORM TOGETHER A CONDENSED BENZENE RING, R3 AND R4 ARE HYDROGEN OR HALOGEN ATOMS, ALKYL, ALKOXY, ARYL, CARBALKOXY OR NITRILE GROUPS, R5 AND R6 REPRESENT HYDROGEN OR OPTIONALLY SUBSTITUTED ALKOXY GROUPS, AND A PROCESS FOR PREPARING THEM. THE DYESTUFFS ARE VERY SUITABLE FOR THE DYEING OF SYNTHETIC MATERIALS, ESPECIALLY F OR THE DYEING OF POLYETHYLENEGLYCOL TEREPHTHALATE. MOREOVER, THESE DYESTUFFS MAY BE USED AS FLUORESCENT DYESTUFF IN THE MASS DYEINGS OF SYNTHETIC POLYMERS. THE RESULTING DYEINGS ARE DISTINGUISHED BY A GOOD FASTNESS TO LIGHT, WET PROCESSING AND THERMOFIXATION.

1,2-PHENYLENE)-(1-(R-O-),2-(R1,R2-PHENYL),3-(O=),5-R5,


3-(R-C-),5-R2,8-R6-PHENALEN-7,6-YLENE)-), AND X