1,3-Dipolar Cycloaddition of Substituted Benzonitrile Oxide to 5-(R)-(l-Menthyloxy)-2(5H)-furanone

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Scvcral isoxazolinc compounds were obtained by the 1,3-dipolar cycloaddition of benzonitrile oxide to 5-(R)-(l-menthyloxy)-2(5H)-furanone. The reaction condition was investigated prcliminarily, the structures of these compounds have been establishcd via the analysis of NMR data(involvcd NOEID or HMBC) and the reaction seems occurred regioselecctively.
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