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Phase Transfer Catalyzed C- vs O-Alkylation of 3-Methyl-1-phenyl-2-pyrazolin-5-one in the Absence or Presence of Carbon Disulphide

✍ Scribed by H. A. M. Hassan, Hammed; Ali Hassan, Mohamed; Döpp, Dietrich


Book ID
118135599
Publisher
Japan Institute of Heterocyclic Chemistry
Year
1997
Tongue
English
Weight
316 KB
Volume
45
Category
Article
ISSN
0385-5414

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ChemInform Abstract: Phase Transfer Cata
✍ M. A. HASSAN; D. DOEPP 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 32 KB 👁 2 views

Phase Transfer Catalyzed C-vs O-Alkylation of 3-Methyl-1-phenyl-2-pyrazolin-5-one in the Absence or Presence of Carbon Disulfide. -Title compound (I) is treated with different bromoorganic compounds as alkylating agents. Alkylation of pyrazolone (I) by bromoacetaldehyde diethylacetal fails because