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Oxidation of 3-Aminoquinazolinones with Lead Tetraacetate. A Novel Synthesis of Naphtho-Fused Azirino-pyrazolo- and 1,4,5-oxadiazepinoquinazolinones.

✍ Scribed by A. M. Sh. El-Sharief; Y. A. Ammar; M. A. Zahran; A. H. Ali


Book ID
101937184
Publisher
John Wiley and Sons
Year
2010
Weight
30 KB
Volume
33
Category
Article
ISSN
0931-7597

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Synthesis of tetrahetrocyclic systems in
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## Abstract magnified image A series of isolated and fused tetracyclic compounds, containing pyrido[2β€²,3β€²:3,4]pyrazolo[1,5‐__a__]pyrimidine linked with 1,3,4‐oxa‐, thiadiazole, 1,2,4‐tetrazole, and pyrazole derivatives were prepared by the reaction of 1,8,10‐trimethyl‐4‐oxo‐1,4‐dihydropyrido[2β€²,3β€²: