From p-halo tosyl ketone oximes

Oximes with a displaceable group in the /S-position cyclize in the presence of base to produce 2-isoxazolines as exemplified in the conversion of (480) into (481) (62HC(l7)l, 78JOC2020, 66JAP6616384, 70JOC2065). 

A/ -Oxides are commonly reduced by a variety of reagents including PCI5 and H2, as shown by the reaction of (482) with H2 to give (483) (69JOC984). 

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