Synthesis of some disperse anthraquinone dyes.

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概要

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• 1-Hydroxy- and/or 1-aminoanthraquinones was allowed to react with formaldehyde in an alkaline medium to give 1-hydroxy- or 1-amino-2-hydroxymethyl-9,10-anthracenediols, which gave by air oxidation, (hydroxymethyl) anthraquinone derivatives. Interaction of 1-amino-2-(hydroxymethyl) anthraquinone or its 4-bromo derivative with carbonyl compounds in the presence of an acid catalyst gave 1,3-oxazine derivatives (<B>2</B>). The methylene group in position-2 of the 1,3-oxazine ring was found to be highly reactive and reacted with carbonyl compounds to form the corresponding 2-arylmethylene derivatives. Selective oxidation of dimethyloxazine derivatives with SeO<SUB>2</SUB> gave the corresponding dialdehyde, which interacted with aromatic amines to give the corresponding Schiff's bases. The bromine atom in the 6-position of <B>2</B> was easily replaced by aromatic amines to give blue disperse dyes.

• 公益社団法人 日本化学会の論文

著者

• Youssef Mohamed

  Chemistry Department, Assiut University

• Younes Mansour

  Chemistry Department, Assiut University

• Metwally Saoud

  Chemistry Department, Assiut University

関連論文

• Synthesis of some disperse anthraquinone dyes.
• Preparation and Application of Some New Disperse Anthraquinone Dyes

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