Condensation of nitro- and amino-substituted phenylmaleimides with furfuryl alcohol

摘要

Reaction of nitro- and amino-substituted phenylmaleimides with furfuryl alcohol afforded 4-aza-1-hydroxymethyl-10-oxa-3,5-dioxo-4-N-[nitro(amino)phenyl]tricyclo[5.2.1(1.7).0(2.6)]dec-8-enes. The latter were easily converted into the corresponding phosphites under the action of hexaethyltriamidophosphite.