Reactivity of Pnictaalumenes Towards 1,3-Dipole Molecules.

ABSTRACT: Alkynes undergo 1,3-dipolar cyclization reactions with organic azides giving 1,2,3-triazoles. Pnictaalumenes RPn═AlR' are the isoelectronic congeners of alkynes, hence a similar reactivity toward 1,3-dipole molecules is expected. Herein, we report the reactions of ^DippTerPn═AlCp* (^DippTer  =  2,6-(2,6-iPr₂C₆H₃)-C₆H₃, Cp*  =  [Me₅C₅], Pn  =  P, As) toward aryl azides. Instead of the anticipated phosphaaluminatriazole products from a [3+2] cyclization, the formation of four-membered AlN₂Pn ring systems of the general form ^DippTerPn(μ-NR)₂AlCp* was observed. Depending on the steric profile of the azide, different outcomes were observed: a) N_α insertion

SUBMITTER: Wellnitz T 

PROVIDER: S-EPMC12304809 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature