28737-68-0Relevant articles and documents
Synthesis of reactive condensation products of acetylacetone and their transformation into deeply coloured methine dyes
Zhao, Zhengjiang,Hartmann, Horst
, p. 249 - 255 (2007/10/03)
Starting from acetylacetone 1, boric acid and a diol, or a 2-aminothiazole 16 and perchloric acid several dimethyl-substituted 1,3,2-dioxaborines 5 and thiazolo[3,2-a]pyrimidinium salts 17, resp., have been prepared and transformed by raction with 4-N,N-dimethylamino-benzaldehyde 3a or 3-methyl-2-methylmercapto-benzthiazolium perchlorate 13 into deeply colored polymethine dyes 11, 12, 14, 15, and 18-21, and 23-24 their spectroscopic data were recorded. Wiley-VCH Verlag GmbH, 2000.