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Methods for the synthesis of 4-pyrazolyl- and 4pyridyl-5-oxo-1, 4,5,7-tetrahydrofuro[3,4-b]pyridines

✍ Scribed by A. Sausln'sh; B. Chekavlchus; G. Duburs

Publisher
Springer US
Year
1995
Tongue
English
Weight
524 KB
Volume
31
Category
Article
ISSN
0009-3122

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3,5-Di­methyl-1,7-di­phenyl-4-(2-pyridyl
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✍ Low, John Nicolson ;Cobo, Justo ;Portilla, Jaime ;Quiroga, Jairo 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 211 KB

Single-crystal X-ray study T = 120 K Mean '(C±C) = 0.002 A Ê R factor = 0.040 wR factor = 0.110 Data-to-parameter ratio = 15.9 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

4-(4-Fluoro­phen­yl)-3-methyl-6-oxo-1-ph
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✍ Wang, Jing ;Zhu, Song-Lei 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 78 KB

The title compound, C 20 H 15 FN 4 O, was synthesized by the reaction of 5-amino-3-methyl-1-phenylpyrazole with ethyl 2cyano-3-(4-fluorophenyl)-1-acylate in glycol under microwave irradiation. The tetrahydropyridine ring adopts a distorted envelope conformation. The pyrazole ring forms a dihedral an