Convenient Synthesis of Pyrazolo[4′,3′:5,6]pyrano[4,3-<i>c</i>][1,2]oxazoles via Intramolecular Nitrile Oxide Cycloaddition

A simple and efficient synthetic route to the novel 3a,4-dihydro-3<i>H</i>,7<i>H</i>- and 4<i>H</i>,7<i>H</i>-pyrazolo[4′,3′:5,6]pyrano[4,3-<i>c</i>][1,2]oxazole ring systems from 3-(prop-2-en-1-yloxy)- or 3-(prop-2-yn-1-yloxy)-1<i>H</i>-pyrazole-4-carbaldehyde oximes has been developed by employing...

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Bibliographic Details

Main Authors:	Vaida Milišiūnaitė, Elena Plytninkienė, Roberta Bakšienė, Aurimas Bieliauskas, Sonata Krikštolaitytė, Greta Račkauskienė, Eglė Arbačiauskienė, Algirdas Šačkus
Format:	Artigo
Language:	Inglês
Published:	MDPI AG 2021-09-01
Series:	Molecules
Subjects:	pyrazole isoxazoline/isoxazole fused ring systems intramolecular nitrile oxide cycloaddition 4-pyrazolaldoximes <sup>1</sup><i>J</i><sub>CH</sub> isoxazole <sup>15</sup>N NMR
Online Access:	https://www.mdpi.com/1420-3049/26/18/5604
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