ZA728106B - Process for the manufacture of colour formers of indoles and anhydrides of aromatic or heteraromatic,vicinal dicarboxylic acids,colour formers of these classes of substance and their use - Google Patents

Process for the manufacture of colour formers of indoles and anhydrides of aromatic or heteraromatic,vicinal dicarboxylic acids,colour formers of these classes of substance and their use

Info

Publication number
ZA728106B
ZA728106B ZA728106A ZA728106A ZA728106B ZA 728106 B ZA728106 B ZA 728106B ZA 728106 A ZA728106 A ZA 728106A ZA 728106 A ZA728106 A ZA 728106A ZA 728106 B ZA728106 B ZA 728106B
Authority
ZA
South Africa
Prior art keywords
colour formers
heteraromatic
indoles
anhydrides
classes
Prior art date
Application number
ZA728106A
Inventor
R Garner
M Duennenberger
Original Assignee
Ciba Geigy Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH1723971A external-priority patent/CH558378A/en
Application filed by Ciba Geigy Ag filed Critical Ciba Geigy Ag
Publication of ZA728106B publication Critical patent/ZA728106B/en

Links

ZA728106A 1971-11-26 1972-11-15 Process for the manufacture of colour formers of indoles and anhydrides of aromatic or heteraromatic,vicinal dicarboxylic acids,colour formers of these classes of substance and their use ZA728106B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1723971A CH558378A (en) 1971-11-26 1971-11-26 METHOD FOR PREPARING 3,3-BIS (INDOL-3-YL) -PHTHALIDES.

Publications (1)

Publication Number Publication Date
ZA728106B true ZA728106B (en) 1973-07-25

Family

ID=4423844

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA728106A ZA728106B (en) 1971-11-26 1972-11-15 Process for the manufacture of colour formers of indoles and anhydrides of aromatic or heteraromatic,vicinal dicarboxylic acids,colour formers of these classes of substance and their use

Country Status (2)

Country Link
BR (1) BR7208273D0 (en)
ZA (1) ZA728106B (en)

Also Published As

Publication number Publication date
BR7208273D0 (en) 1973-08-23

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