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ES397832A1 - Procedure for the preparation of stiriltriazoles. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the preparation of stiriltriazoles. (Machine-translation by Google Translate, not legally binding)

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Publication number
ES397832A1
ES397832A1 ES397832A ES397832A ES397832A1 ES 397832 A1 ES397832 A1 ES 397832A1 ES 397832 A ES397832 A ES 397832A ES 397832 A ES397832 A ES 397832A ES 397832 A1 ES397832 A1 ES 397832A1
Authority
ES
Spain
Prior art keywords
formula
optionally
halogen
translation
preparation
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
ES397832A
Other languages
Spanish (es)
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.)
Novartis AG
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 CH1836670A external-priority patent/CH536342A/en
Priority claimed from CH1677671A external-priority patent/CH580192B5/xx
Application filed by Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of ES397832A1 publication Critical patent/ES397832A1/en
Expired legal-status Critical Current

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  • Plural Heterocyclic Compounds (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Process for the preparation of styryltriazoles, optical brighteners of organic materials, of the general formula ** (see formula) ** In which R 1 is hydrogen, halogen, alkyl having 1 to 4 carbon atoms, alkoxy with 1 to 4 carbon atoms or phenyl (optionally substituted); R2 means hydrogen or halogen; R3 means hydrogen or halogen; R4 means imidazol-1-yl, benzimidazol-2-yl, pyrazol-1-yl, benzotriazol-1-yl, benzotriazol-2-yl or 1,2,4-triazol-1-yl, optionally quaternized and/or substituted ; Whose styryltriazoles constitute optical brighteners, particularly in a proportion of 0.001 to 2% by weight with respect to organic materials of the polyester type, cellulose acetates, polyamides, polypropylene and polyacrylonitrile, characterized by unfolding one mole of water of a compound of the formula ** (see formula) ** Or the formula ** (see formula) ** Where R1 and r2 have the same meaning as set forth in general formula (I), By action of an acid reaction condensing agent, optionally by heating and, optionally, in the presence of basic catalysts. (Machine-translation by Google Translate, not legally binding)
ES397832A 1970-12-11 1971-12-10 Procedure for the preparation of stiriltriazoles. (Machine-translation by Google Translate, not legally binding) Expired ES397832A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1836670A CH536342A (en) 1970-12-11 1970-12-11 Use of new styryl triazoles for the optical brightening of organic materials
CH1677671A CH580192B5 (en) 1971-11-16 1971-11-16

Publications (1)

Publication Number Publication Date
ES397832A1 true ES397832A1 (en) 1975-05-16

Family

ID=25718459

Family Applications (1)

Application Number Title Priority Date Filing Date
ES397832A Expired ES397832A1 (en) 1970-12-11 1971-12-10 Procedure for the preparation of stiriltriazoles. (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES397832A1 (en)

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