β- and γ-amino acetals containing phosphine oxide groups. Synthesis and reactions with resorcinol derivatives
摘要:
New beta- and gamma-amino acetals containing phosphine oxide groups were synthesized by the Kabachnik-Fields reaction of beta- and gamma-amino acetals with paraformaldehyde and dialkylphosphine oxides. Heating of the resulting beta- and gamma-amino acetals with 2-methylresorcinol and pyrogallol in boiling trifluoroacetic acid afforded (dialkylphosphoryl)(omega,omega-diarylalkyl)ammonium trifluoromethanesulfonates.