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Microwave-assisted oxidation of 1,3,5-trisubstituted 4,5-dihydro-1H-pyrazoles to the corresponding pyrazoles with poly(N,N′-dibromobenzene-1,3-disulfonamide-1,2-ethanediyl)

✍ Scribed by Davood Azarifar; Elahe Nadimi; Ramin Ghorbani-Vaghei; Behrooz Maleki


Book ID
111730788
Publisher
Royal Society of Chemistry
Year
2006
Tongue
English
Weight
105 KB
Volume
16
Category
Article
ISSN
0959-9436

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Microwave-assisted synthesis of 2-(4,5-d
✍ Ashok, Dongamanti (author);Rao, Velagapuri Hanumantha (author);Sreenivas, Peddol 📂 Article 📅 2013 🏛 Walter de Gruyter GmbH & Co. KG 🌐 English ⚖ 524 KB

## Abstract A series of pyrazolines **4a–h** has been synthesized by Michael addition of chalcones **3a–h** with hydrazine hydrate in the presence of sodium acetate under conventional heating or microwave irradiation. Structures of the newly synthesized pyrazolines **4a–h** have been established on