Selective B-B bond activation in an unsymmetrical diborane(4) by [(Me₃P)₄Rh-X] (X = Me, OtBu): a switch of mechanism?

Abstract

The unsymmetrical diborane(4) pinB-B((RN)2(C6H4)) (R = Me, Bn) reacts with [(Me3P)4Rh-X] (X = Me, OtBu) giving predominantly either [(Me3P)4Rh-Bpin] or [(Me3P)3Rh-B((RN)2(C6H4))] depending on X. At low temperatures in the presence of excess PMe3 the unprecedented equatorial boryl complex [(Me3P)4Rh-B((MeN)2(C6H4))] is formed.

• Authors: C Borner, K Brandhorst, C Kleeberg
• Journal: Dalton transactions (Cambridge, England : 2003) (Dalton Trans) Vol. 44 Issue 18 Pg. 8600-4 (May 14 2015) ISSN: 1477-9234 [Electronic] England
• PMID: 25868980 (Publication Type: Journal Article)