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Improved Solvent-Free Synthesis and Structure Elucidation of (E)- and (Z)-4-(Arylmethylene)-3-isochromanones.

✍ Scribed by Tamas Lorand; Peter Forgo; Andras Foeldesi; Erzsebet Osz; Laszlo Prokai


Publisher
John Wiley and Sons
Year
2003
Weight
163 KB
Volume
34
Category
Article
ISSN
0931-7597

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Solvent-free microwave synthesis of bis-
✍ J. Quiroga; J. Portilla; B. Insuasty; R. Abonía; M. Nogueras; M. Sortino; S. Zac 📂 Article 📅 2005 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 64 KB

The synthesis of a series of bis-pyrazolo [3,4-b:4',3'-e]pyridines (3) in the reaction of 5-amino-3-methyl-1phenylpyrazole (1) with aldehydes (2) under microwave irradiation and solvent-free conditions is described. The structure elucidation of the products is based on detailed nmr analysis of exper