Journal of Heterocyclic Chemistry p. 713 - 716 (1989)
Update date:2022-09-26
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A synthetic route to 5-substituted 3-(1H-tetrazol-5-yl)pyrazolo[1,5-a]quinazolines is described. An unexpected displacement of a 4-morpholinyl group from the 5-position of this system occurred during tetrazole formation by the ammonia produced by in situ generation of hydrazoic acid from ammonium chloride and sodium azide.
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Doi:10.1080/10426500903176547
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(2010)Doi:10.1007/s11164-016-2668-7
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(2014)Doi:10.1016/S0040-4039(00)99610-2
(1989)
