P–C-Activated Bimetallic Rhodium Xantphos Complexes: Formation and Catalytic Dehydrocoupling of Amine–Boranes**

{Rh(xantphos)}-based phosphido dimers form by P–C activation of xantphos (4,5-bis(diphenylphosphino)-9,9-dimethylxanthene) in the presence of amine–boranes. These dimers are active dehydrocoupling catalysts, forming polymeric [H(2)BNMeH](n) from H(3)B⋅NMeH(2) and dimeric [H(2)BNMe(2)](2) from H(3)B⋅...

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Detalles Bibliográficos
Autores principales: Johnson, Heather C, Weller, Andrew S
Formato: Online Artículo Texto
Lenguaje:English
Publicado: WILEY-VCH Verlag 2015
Materias:
Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4557049/
https://www.ncbi.nlm.nih.gov/pubmed/26140498
http://dx.doi.org/10.1002/anie.201504073
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author Johnson, Heather C
Weller, Andrew S
author_facet Johnson, Heather C
Weller, Andrew S
author_sort Johnson, Heather C
collection PubMed
description {Rh(xantphos)}-based phosphido dimers form by P–C activation of xantphos (4,5-bis(diphenylphosphino)-9,9-dimethylxanthene) in the presence of amine–boranes. These dimers are active dehydrocoupling catalysts, forming polymeric [H(2)BNMeH](n) from H(3)B⋅NMeH(2) and dimeric [H(2)BNMe(2)](2) from H(3)B⋅NMe(2)H at low catalyst loadings (0.1 mol %). Mechanistic investigations support a dimeric active species, suggesting that bimetallic catalysis may be possible in amine–borane dehydropolymerization.
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spelling pubmed-45570492015-09-08 P–C-Activated Bimetallic Rhodium Xantphos Complexes: Formation and Catalytic Dehydrocoupling of Amine–Boranes** Johnson, Heather C Weller, Andrew S Angew Chem Int Ed Engl Communications {Rh(xantphos)}-based phosphido dimers form by P–C activation of xantphos (4,5-bis(diphenylphosphino)-9,9-dimethylxanthene) in the presence of amine–boranes. These dimers are active dehydrocoupling catalysts, forming polymeric [H(2)BNMeH](n) from H(3)B⋅NMeH(2) and dimeric [H(2)BNMe(2)](2) from H(3)B⋅NMe(2)H at low catalyst loadings (0.1 mol %). Mechanistic investigations support a dimeric active species, suggesting that bimetallic catalysis may be possible in amine–borane dehydropolymerization. WILEY-VCH Verlag 2015-08-24 2015-07-03 /pmc/articles/PMC4557049/ /pubmed/26140498 http://dx.doi.org/10.1002/anie.201504073 Text en © 2015 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. https://creativecommons.org/licenses/by/4.0/ © 2015 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Communications
Johnson, Heather C
Weller, Andrew S
P–C-Activated Bimetallic Rhodium Xantphos Complexes: Formation and Catalytic Dehydrocoupling of Amine–Boranes**
title P–C-Activated Bimetallic Rhodium Xantphos Complexes: Formation and Catalytic Dehydrocoupling of Amine–Boranes**
title_full P–C-Activated Bimetallic Rhodium Xantphos Complexes: Formation and Catalytic Dehydrocoupling of Amine–Boranes**
title_fullStr P–C-Activated Bimetallic Rhodium Xantphos Complexes: Formation and Catalytic Dehydrocoupling of Amine–Boranes**
title_full_unstemmed P–C-Activated Bimetallic Rhodium Xantphos Complexes: Formation and Catalytic Dehydrocoupling of Amine–Boranes**
title_short P–C-Activated Bimetallic Rhodium Xantphos Complexes: Formation and Catalytic Dehydrocoupling of Amine–Boranes**
title_sort p–c-activated bimetallic rhodium xantphos complexes: formation and catalytic dehydrocoupling of amine–boranes**
topic Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4557049/
https://www.ncbi.nlm.nih.gov/pubmed/26140498
http://dx.doi.org/10.1002/anie.201504073
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