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ChemInform Abstract: Polyphosphoric Acid and Anhydrous Aluminum Chloride Catalyzed Novel Rearrangements of 1,5-Diaroylcarbohydrazides.

✍ Scribed by A. V. KARNIK; R. G. KAMATH


Publisher
John Wiley and Sons
Year
2010
Weight
33 KB
Volume
29
Category
Article
ISSN
0931-7597

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ChemInform Abstract: Acid-Promoted Isome
✍ T. IWAMA; H. MATSUMOTO; T. KATAOKA πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons βš– 34 KB

The title reactions of compounds (III) result in Ξ±,Ξ²;Ξ³ ,Ξ΄-unsaturated carboxylic esters and nitriles (IV). The reactions proceed by use of a sulfonic acid such as TosOH, TfOH etc. in a non-polar solvent. Addition of a catalytic amount of m-MeC6H4SH improves the yield of product (VI). The mechanism o