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Facile synthesis of some novel 1,3,4,2-oxa(thia)diazaphospholo[5,4-b]quinazolinones and 1,2,4,3-triazaphospholo[5,1-b]quinazolinones
Journal article   Peer reviewed

Facile synthesis of some novel 1,3,4,2-oxa(thia)diazaphospholo[5,4-b]quinazolinones and 1,2,4,3-triazaphospholo[5,1-b]quinazolinones

Tarik E. Ali, Mohammed A. Assiri, H. Y. Zahran, I. S. Yahia and Mai S. A. Hussien
Synthetic communications, Vol.51(2), pp.302-307
17/01/2021
DOI: https://doi.org/10.1080/00397911.2020.1825745

Abstract

Chemistry Chemistry, Organic Physical Sciences Science & Technology
The cyclo condensation of some bi-functionally quinazolinones with some phosphorus dihalides in dry pyridine led to novel 1,3,4,2-oxadiazaphospholo[5,4-b]quinazolinones, 1,3,4,2-thiadiazaphospholo[5,4-b]quinazolinones and 1,2,4,3-triazaphospholo[5,1-b]quinazolinones. The structure of novel products was established by IR and NMR spectroscopy.

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