2H-1,4-benzoxazin-3(4H)-one → HCID 67027701, compound

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The title compound was prepared according to Method B and the experimentals described for compound 92 from 3-(chloromethyl)-2-(4-chlorophenyl)imidazo[1,2-a]pyridine hydrochloride and 2H-benzo[b][1,4]oxazin-3(4H)-one. M/e+ 390 for C22H17ClN3O2 (M+H)+; 1H-NMR (400 MHz, CDCl3) δ 8.32 (d, J=6.9 Hz, 1H), 7.61 (d, J=8.4 Hz, 2H), 7.53 (m, 3H), 7.19 (ddd, J=9.1, 6.9, 1,1 Hz, 1H), 6.82 (m, 3H), 6.48 (m, 1H), 6.26 (d, J=7.7 Hz, 1H), 5.68 (s, 2H), 4.60 (s, 2H) ppm.

Provenance & Evidence