CA779291A - Process for the manufacture of water-insoluble azo dyestuffs containing cyano groups - Google Patents

Process for the manufacture of water-insoluble azo dyestuffs containing cyano groups

Info

Publication number
CA779291A
CA779291A CA779291A CA779291DA CA779291A CA 779291 A CA779291 A CA 779291A CA 779291 A CA779291 A CA 779291A CA 779291D A CA779291D A CA 779291DA CA 779291 A CA779291 A CA 779291A
Authority
CA
Canada
Prior art keywords
manufacture
water
cyano groups
insoluble azo
azo dyestuffs
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA779291A
Inventor
Von Brachel Hanswilli
Cornelius Dieter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cassella Farbwerke Mainkur AG
Original Assignee
Cassella Farbwerke Mainkur AG
Publication date
Application granted granted Critical
Publication of CA779291A publication Critical patent/CA779291A/en
Expired legal-status Critical Current

Links

CA779291A Process for the manufacture of water-insoluble azo dyestuffs containing cyano groups Expired CA779291A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA779291T

Publications (1)

Publication Number Publication Date
CA779291A true CA779291A (en) 1968-02-27

Family

ID=36226609

Family Applications (1)

Application Number Title Priority Date Filing Date
CA779291A Expired CA779291A (en) Process for the manufacture of water-insoluble azo dyestuffs containing cyano groups

Country Status (1)

Country Link
CA (1) CA779291A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978040A (en) * 1973-03-03 1976-08-31 Bayer Aktiengesellschaft Process for the preparation of cyanoazo compounds by reacting halogenoazo compounds with CuCN in an aqueous media in the presence of a nitrogen base
US4045430A (en) * 1974-11-29 1977-08-30 Bayer Aktiengesellschaft Conversion of o-halogenoazo compound to o-cyanoazo compound by reaction with a zinc cyanide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978040A (en) * 1973-03-03 1976-08-31 Bayer Aktiengesellschaft Process for the preparation of cyanoazo compounds by reacting halogenoazo compounds with CuCN in an aqueous media in the presence of a nitrogen base
US4045430A (en) * 1974-11-29 1977-08-30 Bayer Aktiengesellschaft Conversion of o-halogenoazo compound to o-cyanoazo compound by reaction with a zinc cyanide

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