1-(3,3-Diethoxypropyl)-1-[(dihexylphosphoryl)methyl]-3-phenylurea in the Synthesis of 4-Aryl-Substituted Tetrahydropyrimidin-2-ones
摘要:
First specimens of 4-aryl-substituted tetrahydropyrimidin-2(1H)-ones containing a phosphoryl group were obtained through the reaction of 1-(3,3-diethoxypropyl)-1-[(dihexylphosphoryl)methyl]-3-phenylurea with resorcinol and its derivatives in the presence of trifluoroacetic acid.
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.