One-pot syntheses of rhena-2-benzopyrylium complexes with a fused metallacyclopropene unit
Bao Xiao, Yang Li, Wei Bai, Yan Zhou, Yilun Wang, Yue Sun, Jingyang Jiang
Abstract
A convenient synthetic route to polycyclic metallaaromatics containing main-group heteroatoms has been developed. The first cyclopropametalla-2-benzopyrylium complexes 2-4, the rhena-analogues of pyrylium, are isolated and characterized. Structural analysis and DFT calculations show that the metalla-oxa polycyclic structures have both π-aromaticity and σ-aromaticity.
Topics & Concepts
Unit (ring theory)ChemistryCombinatorial chemistryMathematicsMathematics educationCyclopropane Reaction MechanismsOrganometallic Complex Synthesis and CatalysisN-Heterocyclic Carbenes in Organic and Inorganic Chemistry