- NOVEL AZO COMPOUND AND AZO COLORANT
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The present disclosure provides a compound represented by the following formula (1).
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Paragraph 0026; 0027
(2017/04/11)
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- Azo dye and azo compound
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An azo dye including a compound represented by formula (I): wherein R1 represents a hydroxyl group, an aliphatic sulfonyl amino group, an aryl sulfonyl amino group, an aliphatic oxy group, an aryloxy group, or -CH(R2)(R3); R2 and R3 each represent a substituent with a a value of the Hammett's rule in the range of 0.2 or more and less than 1.4, and may be identical to or different from each other; W represents a sulfur atom or -N-(-R4)-; R4 represents a substituent; R5 represents a substituent; X, Y, and Z each represent an atom required for forming a five-membered aromatic heterocycle, where at least one atom of X, Y, and Z represents a nitrogen atom but both X and Y do not represent a carbon atom when Z represents a nitrogen atom; and R6 represents a hydrogen atom or a substituent, n represents 1 or 2, and two R6s may be coupled together to form an aromatic ring or a heteroaromatic ring when n represents 2.
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Page/Page column 18; 19
(2008/12/07)
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- Oxidative cyclization of dithiobiuret under basic conditions and theoretical tautomeric studies of 5-amino-2,3-dihydro-1,2,4-thiadiazole-3-thione
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The oxidative cyclization of dithiobiuret under basic conditions (NaOH-H2O2 or CH3CO3H) afforded bis(5-amino-1,2,4-thiadiazolyl) 3,3′-disulfide (5), oxidative dimer form of 5-amino-3-mercapto-1,2,4-thiadiazole (
- Cho, Nam Sook,Kim, Young Hoon,Park, Mi Sun,Kim, Eun Hee,Kang, Sung Kwon,Park, Chang-Moon
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p. 1401 - 1409
(2007/10/03)
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