Synthesis of tricyclic 1,4-dihydro-1,4-phosphagermines – trying to establish molecular fencing of reactive centers

Abstract

Novel 1,4-dihydro-1,4-phosphagermines (A) have been synthesised bearing small N-alkyl substituents, but the N-Mes substituent led finally to a pentacyclic P,Ge-heterocycle (B); the latter was rationalized using DFT theoretical calculations.