Всесоюзний Державний Науково-Дослідний І Проектний Інститут Хіміко-Фотографічної Промисловості
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Application filed by Інститут Органічної Хімії Ан Урср, Институт Органической Химии Ан Урср, Всесоюзний Державний Науково-Дослідний І Проектний Інститут Хіміко-Фотографічної ПромисловостіfiledCriticalІнститут Органічної Хімії Ан Урср
Priority to UA4846880ApriorityCriticalpatent/UA18297A/en
Publication of UA18297ApublicationCriticalpatent/UA18297A/en
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Optical Record Carriers And Manufacture Thereof
(AREA)
Abstract
The invention relates to the field of film- and photo industry. A process for obtaining of cyanine dyes by interaction of quaternary salt of nitrogenous heterocyclic compound. A compound comprises active methyl group with a derivative of nitrogen-containing base, containing alkoxy-, or acetanilino-, or sulpho-, or methylmerkaptogroup in α- or γ -position to cyclic nitrogen atom, or with 1,2-dichloro-3,4,5,6-tetrafluorocyclohex-1-ene in dimethylsulphoxide or acetonitrile medium in the presence of condensing agent at 20 - 40°C. Triamidophosphazomethane of formula [(C2H5)2N]3 P=N-CH3 is used as a condensing agent.
UA4846880A1990-07-031990-07-03A process for obtaining of cianine dyes
UA18297A
(en)