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ChemInform Abstract: Synthesis and Application of Some Azo and Azomethine Dyes Containing Pyrazolone Moiety.

✍ Scribed by Hala F. Rizk; Mohamed A. El-Borai; Gad B. El-Hefnawy; Hatem F. El-Sayed

Publisher
John Wiley and Sons
Year
2009
Weight
44 KB
Volume
40
Category
Article
ISSN
0931-7597

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Synthesis and Application of Some Azo an
Synthesis and Application of Some Azo and Azomethine Dyes Containing Pyrazolone Moiety
✍ Hala F. RIZK; Mohamed A. El-BORAI; Gad B. El-HEFNAWY; Hatem F. El-SAYED πŸ“‚ Article πŸ“… 2009 πŸ› John Wiley and Sons 🌐 English βš– 83 KB πŸ‘ 1 views

## Abstract 3‐Amino‐1‐phenyl‐4,5‐dihydro‐1__H__‐pyrazol‐5‐one (**1**) was used as starting material for the synthesis of a number of azo compounds **3a–3c** and azomethine derivative **4**. The deblocking of **3a**–**3c** and **4** gave rise to **5a**–**5c** and **6** in which a free amino was reve