Synthesis of Some 4-Chloro-5-cyano-2-dialkylamino-6H-1,3-oxazin-6-ones and their Reactions with Trialkyl Phosphites to Give Dialkyl (5-Cyano-2-dialkylamino-6-oxo-6H-1,3-oxazin-4-yl)phosphonates
Syntheses of New Heterocycles Starting from Dicyanoacetates
作者:Richard Neidlein、Peter Meffert
DOI:10.3987/com-94-s5
日期:——
The reactions of 4-chloro-2-dialkylamino-6-oxo-6H-1,3-oxazine-5-carbonitriles (3) with C-, N- and S-nucleophiles are reported. The chloro atom can also be substituted in a Michaelis-Arbuzov reaction giving the corresponding 1,3-oxazinyl phosphinates and phosphinoxides.