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isoxazole
isoxazole n.
Brit. 
/ʌɪˈsɒksəzəʊl/
, /ʌɪˈsɒksəzəʊl/U.S. /aɪˈsɑksəˌzoʊl/
[ < German isoxazol (A. Hantzsch 1888, in Ann. d. Chem. CCXLIX. 3)] (a) a liquid heterocyclic compound, CH:CH·O·N:CH, with a penetrating odour; (b) a derivative of this compound./aɪˈsɑksəˌzoʊl/ΘΚΠ
the world > matter > chemistry > organic chemistry > organic compounds > [noun] > heterocyclic compounds > containing nitrogen > oxazoles > isoxazoles
isoxazole1891
ibotenic acid1962
1891 Jrnl. Chem. Soc. 59 410 (heading) Formation of isoxazoles.
1946 A. A. Morton Chem. Heterocyclic Compounds xiv. 421 No naturally occurring isoxazole compounds are known. They are often obtained in the course of laboratory work with nitroso and isonitroso compounds.
1960 R. M. Acheson Introd. Chem. Heterocyclic Compounds vii. 272 Isoxazole itself is obtainable from propargyl aldehyde and hydroxylamine; 1,3-dicarbonyl compounds also give isoxazoles with hydroxylamine in a very general synthesis.
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