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Paper | Regular issue | Vol 27, No. 8, 1988, pp.1899-1905
Published online, 1st January, 1970
DOI: 10.3987/COM-88-4581
Photochemical Rearrangements of 3-Methylisoxazolopyridines

Donato Donati, Stefania Fusi, Fabio Ponticelli,* and Piero Tedeschi

*Istituto di Chimica Organica, Università di Siena, Pian dei Mantellini 44, 53100 Siena, Italy


Irradiation in water.-saturated ehyl ether of isoxazolopyridines 1a,e, beside the corresponding oxazolopyridines 2a,e, leads to N-methylcarboxamides 3a,e via 1-2 shift of the methyl group. The lsoxazolopyridine 5, bearing a hydrazino group in 4-position, rearranges only to 1-aminopyrazolopyridine 6.