Issue 7, 2015

Regioselective [2+2] and [4+2] cycloaddition reactivity in an asymmetric niobium(bisimido) moiety towards unsaturated organic molecules

Abstract

The asymmetric bis-imido structure and the lability of the diethyl ether linkage in complex 1 provide a niobium complex that undergoes regioselective [4+2] cycloaddition reactions with an α,β-unsaturated ketone and cycloaddition reactions that involve bond formation to the MAD ligand (MonoAzabutaDiene). DFT calculations have been used to support an initial azametallacyclobutene intermediate in the alkyne reaction.

Graphical abstract: Regioselective [2+2] and [4+2] cycloaddition reactivity in an asymmetric niobium(bisimido) moiety towards unsaturated organic molecules

Supplementary files

Article information

Article type
Communication
Submitted
04 Oct 2014
Accepted
27 Nov 2014
First published
05 Dec 2014

Chem. Commun., 2015,51, 1278-1281

Regioselective [2+2] and [4+2] cycloaddition reactivity in an asymmetric niobium(bisimido) moiety towards unsaturated organic molecules

A. H. Obenhuber, T. L. Gianetti, R. G. Bergman and J. Arnold, Chem. Commun., 2015, 51, 1278 DOI: 10.1039/C4CC07851A

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