S. Srivastava et De. Falvey, PHOTOLYSIS OF 3-HYDROXY-2,3-DIHYDRO-2,1-BENZISOXAZOLE DERIVATIVES STUDIED BY EPR SPECTROSCOPY - COMPETING N-O AND C-O BOND SCISSION, Tetrahedron letters, 37(17), 1996, pp. 2895-2898
Photolysis of 3-hydroxy-2,3-dihydro-2,1-benzisoxazole derivatives give
s 2-acetylaniline derivatives as the sole stable products. EPR spectro
scopy shows that persistent arylnitroxyl radicals are formed as interm
ediates and then further photolyzed. A mechanism accounting for these
observations is proposed. (C) 1996 Elsevier Science Ltd