The Synthesis Of P,N-Heterocycles Intramolecular C-H Arylation By T-BuOK

Iminophosphazene?R₃P = NR '?is a class of imine derivatives produced by the substitution of nitrogen atoms for oxygen atoms in oxygen-containing phosphoric acid,the P,N bond has the characteristic of partial double bond.Therefore,the study of its reactivity mainly focused on the phosphorus-nitrogen double bond.Since the structure of iminophosphazene is similar to that of phosphorus ylides,it is relatively stable.Therefore,we have put the research focus on the substituents of phosphorus and nitrogen atoms,and synthesized a series of P,N-heterocyclic compounds by transition-metal-free t-BuOK to promote promote intracellular C-H arylation.In addition,we also studied the ring-opening reaction of P,N-heterocyclic compounds and obtained bidentate ligands containing phosphorus and nitrogen.Further research,we synthesized compounds that can be applied to organic phosphorescent materials.