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Synthesis and Biological of N-Dichloroacetyl -1,3- Oxazolidine Derivatives

A series of novel N-dichloroacetyl-l,3-oxazolidine derivatives 4 were synthesized by a convenient one-pot synthesis involving cycloaddition reaction of -amino alcohol 1 with aldehyde or ketone 2 in benzene and acylation of oxazolidines 3 with dichloroacetyl chloride. The structures of the compounds were characterized by IR, Ή NMR, C NMR and element analysis. The preliminary biological test showed that the compounds could protect maize against injury caused by chlorsulfuron in some extent.