Jump to main content
Jump to site search

Issue 18, 2014
Previous Article Next Article

Versatile reactivity of a rhodium(I) boryl complex towards ketones and imines

Author affiliations

Abstract

The rhodium(I) boryl complex [Rh(Bpin)(PEt3)3] (1) reacts with the ketones α,α,α-trifluoroacetophenone and 9-fluorenone by insertion of the C[double bond, length as m-dash]O bond to give [Rh{η3-C(CF3)(OBpin)C6H5}(PEt3)2] (4) and [Rh{η5-C13H8(OBpin)}(PEt3)2] (6), whereas the reaction with acetophenone leads to the formation of [Rh(H)(PEt3)3] (2), [Rh(OBpin)(PEt3)3] (3) and (E)-(Ph)CH[double bond, length as m-dash]CHBpin. Treatment of 1 with ketimines generates [Rh{η3-C6H5[double bond, length as m-dash]C(Ph)N(Ph)(Bpin)}(PEt3)2] (7), [Rh{(η3-C12H8)N(Ph)(Bpin)}(PEt3)2] (8) or [Rh{CPh2N(H)(Bpin)}(PEt3)2] (9). The insertion of aldimines into the Rh–B bond gives access to [Rh[η3-CH{N(C6H13)Bpin}C6H5](PEt3)2] (11) or [Rh[η3-CH{N(Ph)Bpin}C6H5](PEt3)2] (12). The latter is converted into the C–H activation product [Rh{(C6H4)-o-N(Bpin)(CH2Ph)}(PEt3)3] (13). Complex 13 reacts with B2pin2 to yield the boryl complex 1 and the amine PhCH2N(Bpin)(C6H4-o-Bpin).

Graphical abstract: Versatile reactivity of a rhodium(i) boryl complex towards ketones and imines

Back to tab navigation

Supplementary files

Publication details

The article was received on 09 Jan 2014, accepted on 17 Feb 2014 and first published on 20 Mar 2014


Article type: Paper
DOI: 10.1039/C4DT00080C
Citation: Dalton Trans., 2014,43, 6786-6801
  •   Request permissions

    Versatile reactivity of a rhodium(I) boryl complex towards ketones and imines

    S. I. Kalläne, T. Braun, B. Braun and S. Mebs, Dalton Trans., 2014, 43, 6786
    DOI: 10.1039/C4DT00080C

Search articles by author

Spotlight

Advertisements