15791-08-9Relevant articles and documents
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Adam,Hall
, p. C17,C18 (1979)
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Synthesis method of ultraviolet light absorber UV-1600 intermediate
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Paragraph 0016-0019, (2021/07/24)
The invention discloses a synthesis method of an ultraviolet light absorber UV-1600 intermediate 2, 4-di ([1, 1 '-biphenyl]-4-yl)-6-chloro-1, 3, 5-triazine. The method comprises the following steps: taking cyanuric chloride and organic carboxylic acid as raw materials, and reacting in the presence of a basic catalyst to obtain 4, 6-dichloro-2-hydroxy-1, 3, 5-triazine; carrying out a Friedel-Crafts reaction (a column del-Crafts reaction) on 4, 6-dichloro-2-hydroxy-1, 3, 5-triazine and biphenyl under the catalysis of Lewis acid to obtain 2, 4-di ([1, 1'-biphenyl]-4-yl)-6-hydroxy-1, 3, 5-triazine; and then carrying out chlorination reaction under the action of a chlorination reagent to obtain the 2, 4-di([1, 1 '-biphenyl]-4-yl)-6-chloro-1, 3, 5-triazine. The compound is an important intermediate for synthesizing and producing a light stabilizer UV-1600 and similar compounds, and has an important application prospect in the field of ultraviolet light stabilizers.
DYE, INK, INK JET RECORDING METHOD, INK SHEET, COLOR TONER AND COLOR FILTER
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Page/Page column 44, (2008/06/13)
To provide a dye which has a good hue, which can form an image showing a high fastness under various using conditions and environmental conditions, and which is particularly suited for an ink, the dye is represents by formula (1): wherein R1 and R2 each independently represents a monovalent group, Z represents a nitrogen atom or a carbon atom to which a hydrogen atom or a monovalent group is bonded, and M represents a hydrogen atom or a cation, provided that the dye has two azo groups.