This article is cited in 3 papers

Intramolecular Cyclization in 4-Azido-5-ethoxycarbonyl-2-(2′-hydroxyphenyOpyrimidine: Synthesis and Properties of 3-Ethoxy-6-(2′-hydroxyphenyl)isoxazolo[3,4-d]pyrimidine

V. P. Vetchinov, E. B. Nikolaenkova, V. I. Mamatyuk, V. P. Krivopalov

N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation

Abstract: The title azide in the solid state or in DMSO solution cyclizes thermally to isoxazolo[3,4-d]pyrimidine 2, which can either further rearrange to isoxazolone 3 or be transformed to hydroxylamine 5 or sulfoximine 7 on interaction with water or upon dilution of its DMSO solution by water, respectively; the tetrazolo tautomer 1T yields the acrylate 6.

Language: English

DOI: 10.1070/MC1993v003n04ABEH000263

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