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. 2013 Jan 2;52(1):437-40.
doi: 10.1002/anie.201207903. Epub 2012 Nov 29.

Paramagnetic titanium(III) and zirconium(III) metallocene complexes as precatalysts for the dehydrocoupling/dehydrogenation of amine-boranes

Holger Helten  1 , Barnali Dutta, James R Vance, Matthew E Sloan, Mairi F Haddow, Stephen Sproules, David Collison, George R Whittell, Guy C Lloyd-Jones, Ian Manners
Affiliations

Paramagnetic titanium(III) and zirconium(III) metallocene complexes as precatalysts for the dehydrocoupling/dehydrogenation of amine-boranes

Holger Helten et al. Angew Chem Int Ed Engl. .

Abstract

Complexes of Group 4 metallocenes in the +3 oxidation state and amidoborane or phosphidoborane function as efficient precatalysts for the dehydrocoupling/dehydrogenation of amine-boranes, such as Me(2) NH⋅BH(3). Such Ti(III) -amidoborane complexes are generated in [Cp(2)Ti]-catalyzed amine-borane dehydrocoupling reactions, for which diamagnetic M(II) and M(IV) species have been previously postulated as precatalysts and intermediates.

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