Scope and Limitation of the Reactions of 3-Imino Derivatives of Pentane-2,4-Diones with Organophosphorus Reagents
β Scribed by Boulos, Leila S.; Abdel-Malek, Hoda A.; El-Sayed, Naglaa F.; Moharam, Maysa E.
- Book ID
- 126649936
- Publisher
- Taylor and Francis Group
- Year
- 2012
- Tongue
- English
- Weight
- 382 KB
- Volume
- 187
- Category
- Article
- ISSN
- 1042-6507
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Six analogues and derivatives (1-6) of 3-phenylhydrazonopentane-2,4-dione (7) were subjected to gas-phase thermolysis. The Arrhenius log A and Ea (kJ ) of the Οͺ1 Οͺ1 (s ) mol analogues (1-5) are, respectively: 10.42 and 140.8 for 1-cyano-1-phenyl-hydrazonopropanone (1), 11.19 and 135.4 for 1-cyano-1
## Abstract A novel and efficient method of synthesis of 3-substituted derivatives of pentane-2,4-dione is proposed, wherein cheaper and easily accessible chloro derivatives are conversed into more reactive iodo derivatives. The method is based on the Finkelstein reaction for which the literature s
Reaction of Various N-Methyl-Substituted 5-Aminobenzazoles with Ethoxymethylene Derivatives of Pentane-2,4-dione and 3-Oxobutanoic Acid. -Various products of type (III) are prepared for detailed studies. The structures are discussed on the basis of spectral data (IR, UV, NMR, MS). E/Z isomers are i