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- W4237156775 startingPage "473" @default.
- W4237156775 abstract "Anthraquinone azole type vat dyes hawing anthraquinone(2:3)oxazole 1a, anthraquinone(1:2)oxazole 1b, anthraquinone(2:3)thiazole 1d, andanthraquinone (2:1)thiazole 1f in 2-position of 1, 4-diaminoanthraquinone were synthesized The dyes having anthraquinone(2:1)oxazole and anthraquinone (1:2) thiazole could not be obtained in pure form. As described in the preceeding report1, the order of λmax having absorpton in longer wave length side than 1, 4-diaminoanthra, uinone by the deep coloring action of nthraquinone-azole ring was in order of (1f)>(1d)>(1b)>(1a) and each of them had the same double head as in 1, 4-diaminoanthraquine. In these dyes, the amino group in 1-position is protected by the hydrogen bonding but the fasthess against chlorine is extremely weak due to the presence of amino group in 4-position. However, thedye having good fastness againstchlorine is obtained by benzoylation of amino group in 4-position." @default.
- W4237156775 created "2022-05-12" @default.
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- W4237156775 date "1962-01-01" @default.
- W4237156775 modified "2023-09-30" @default.
- W4237156775 title "The Studies on the Anthraquinone-azole Vat Dyes. IV" @default.
- W4237156775 doi "https://doi.org/10.5059/yukigoseikyokaishi.20.473" @default.
- W4237156775 hasPublicationYear "1962" @default.
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