Title:
METHOD OF PREPARING SPIROPYRANE COMPOUNDS
Document Type and Number:
Japanese Patent JPS5242880
Kind Code:
A
Abstract:
PURPOSE: Spiropyrane compounds of formula I -(Z is S, NR1;R1 is alkyl, aralkyl, aryl, acyl; Y is O, NR2;R2 is alkyl, aralkyl, aryl, in the proviso that when Y is O, X is not acyl); for example, 1',3',4',-triphenylspiro [2H-benzopyrane-2, 5,-(2-1,2,4)triazone].
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Inventors:
ISHIGE SADAO
SAEKI KIYOFUSA
OKAZAKI MITSUO
SATOU KOUZOU
SAEKI KIYOFUSA
OKAZAKI MITSUO
SATOU KOUZOU
Application Number:
JP11951275A
Publication Date:
April 04, 1977
Filing Date:
October 03, 1975
Export Citation:
Assignee:
FUJI PHOTO FILM CO LTD
International Classes:
C07D498/10; B41M5/136; C07D491/10; C07D491/107; C07D498/14; C07D513/10; C07D515/10; C09B57/00; (IPC1-7): B41M5/12; C07D491/10; C07D498/10; C07D513/10; C07D515/10