Ying Fu, Li-Hua Qu, Shan-shan Zhang
Aug 1, 2012
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Abstract
Abstract An easy synthetic route to N-dichloroacetyl-3,4-dihydro-2H-1,4-benzoxazine derivatives 3 involves cyclization of 2-aminophenols 1 with 1,2-dibromoethane and subsequent acylation of the resultant 3,4-dihydro-2H-1,4-benzoxazine derivatives 2 with dichloroacetyl chloride. All compounds were characterized by IR, 1H NMR, 13C NMR, ESI-MS and elemental analysis. The structure of 3a was determined by X-ray crystallographic analysis.