N,O-Dimethylhydroxylamine → Benzophenone

Participants

Reaction Steps

The benzophenone derivative 70 was prepared using chemistry outlined in Scheme 13. Weinreb amide 69, derived via coupling of the acid chloride of the corresponding acid intermediate 62 with N,O-dimethylhydroxylamine, was treated with phenylmagnesium bromide to afford 70. Subsequent reduction of compound 70 with sodium borohydride provided alcohol 71, which was further reduced in the presence of trifluoroacetic acid to give the diphenylmethane derivative 72.

Provenance & Evidence