Title:
BENZOPTERIDINE DERIVATIVE AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JPH05105683
Kind Code:
A
Abstract:
PURPOSE: To obtain the subject new compound, having a high fluorescent photon yield and Stokes shift value and useful as a fluorescent coloring matter contained in wavelength conversing films, displays, concentrating plates, etc., for solar cells.
CONSTITUTION: A compound expressed by formula I [R1 to R4 are (substituted) alkyl, alkenyl, alkynyl or aryl; R5 and R6 are H, halogen, alkyl, alkoxy, mono- or dialkylamino or alkylthio; R7 is (substituted)alkyl]. The compound expressed by formula I is obtained by carrying out photochemical reaction of a compound expressed by formula II with a compound expressed by the formula R7OH.
Inventors:
HAMAMOTO ISAMI
AKASHI YURI
TAKAHASHI HIROSHI
AKASHI YURI
TAKAHASHI HIROSHI
Application Number:
JP8956392A
Publication Date:
April 27, 1993
Filing Date:
March 13, 1992
Export Citation:
Assignee:
NIPPON SODA CO
International Classes:
C07D487/22; C09K11/06; (IPC1-7): C07D487/22; C09K11/06
Attorney, Agent or Firm:
Yoshimi Yokoyama (1 person outside)