Synthesis and solid state absorption spectra of some aminonaphthoquinone dyes
✍ Scribed by Jae Hong Kim; Masaru Matsuoka; Koushi Fukunishi
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 466 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0143-7208
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract 3‐Amino‐2‐cyano‐4,6‐disubstituted‐thieno{2,3‐b}pyridines and 3‐aminopyridine were diazotized and coupled with 2‐phenylindole, 2‐methylindole, and 1‐methyl‐2‐phenylindole, respectively. These dyes were characterized by UV‐Visible, FT‐IR, ^1^H NMR, and mass spectroscopic techniques. Solve
The reaction of a ratio of 1 mole of 5-chloro-3-methyl-1-phenyl pyrazolo-4[2(4)]-dimethine cyanine (1a,b) or (5-chloro-4-formyl-3-methyl-1-phenylpyrazole) 2 with 2 moles of an appropriate 2(4)-heterocyclic quaternary salt afforded the novel pentamethine cyanine dyes (3a-3e). Other reactions of 2 wit