Title:
PRODUCTION OF POLYCYCLIC DYE AND INTERMEDIATE USED FOR THE METHOD
Document Type and Number:
Japanese Patent JPH0649379
Kind Code:
A
Abstract:
PURPOSE: To obtain a dye useful to color synthetic fiber materials, especially polyesters by reacting a plurality of specified compds. to prepare a specific polycyclic dye.
CONSTITUTION: A polycyclic dye expressed by formula I (ring A is unsubstd. or substituted with 1 to 3 groups; ring B is unsubstd. or substituted with 1 to 2 groups except for nitro group) is prepared by the reaction of a compd. expressed by formula II (R is H or an alkyl which is optionally a substd., aryl which is optionally substd.; Z is oxyammonium) and benzofuranone expressed by formula III.
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Inventors:
DEBITSUTO JIYON MIRUNAA
Application Number:
JP10250993A
Publication Date:
February 22, 1994
Filing Date:
April 28, 1993
Export Citation:
Assignee:
ZENECA LTD
International Classes:
C07C239/20; C07D493/04; C09B57/00; D06P3/52; (IPC1-7): C09B57/00; D06P3/52
Attorney, Agent or Firm:
Toshio Yano (1 outside)
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