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Tuning the Porphyrin Building Block in Self‐Assembled Cages for Branched‐Selective Hydroformylation of Propene

Unprecedented regioselectivity to the branched aldehyde product in the hydroformylation of propene was attained on embedding a rhodium complex in supramolecular assembly L2, formed by coordination‐driven self‐assembly of tris(meta‐pyridyl)phosphine and zinc(II) porpholactone. The design of cage L2 i...

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Autores principales: Wang, Xiaowu, Nurttila, Sandra S., Dzik, Wojciech I., Becker, René, Rodgers, Jody, Reek, Joost N. H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5697640/
https://www.ncbi.nlm.nih.gov/pubmed/28608592
http://dx.doi.org/10.1002/chem.201702113
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author Wang, Xiaowu
Nurttila, Sandra S.
Dzik, Wojciech I.
Becker, René
Rodgers, Jody
Reek, Joost N. H.
author_facet Wang, Xiaowu
Nurttila, Sandra S.
Dzik, Wojciech I.
Becker, René
Rodgers, Jody
Reek, Joost N. H.
author_sort Wang, Xiaowu
collection PubMed
description Unprecedented regioselectivity to the branched aldehyde product in the hydroformylation of propene was attained on embedding a rhodium complex in supramolecular assembly L2, formed by coordination‐driven self‐assembly of tris(meta‐pyridyl)phosphine and zinc(II) porpholactone. The design of cage L2 is based on the ligand‐template approach, in which the ligand acts as a template for cage formation. Previously, first‐generation cage L1, in which zinc(II) porphyrin units were utilized instead of porpholactones, was reported. Binding studies demonstrate that the association constant for the formation of second‐generation cage L2 is nearly an order of magnitude higher than that of L1. This strengthened binding allows cage L2 to remain intact in polar and industrially relevant solvents. As a consequence, the unprecedented regioselectivity for branched aldehyde products can be maintained in polar and coordinating solvents by using the second‐generation assembly.
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spelling pubmed-56976402017-11-28 Tuning the Porphyrin Building Block in Self‐Assembled Cages for Branched‐Selective Hydroformylation of Propene Wang, Xiaowu Nurttila, Sandra S. Dzik, Wojciech I. Becker, René Rodgers, Jody Reek, Joost N. H. Chemistry Full Papers Unprecedented regioselectivity to the branched aldehyde product in the hydroformylation of propene was attained on embedding a rhodium complex in supramolecular assembly L2, formed by coordination‐driven self‐assembly of tris(meta‐pyridyl)phosphine and zinc(II) porpholactone. The design of cage L2 is based on the ligand‐template approach, in which the ligand acts as a template for cage formation. Previously, first‐generation cage L1, in which zinc(II) porphyrin units were utilized instead of porpholactones, was reported. Binding studies demonstrate that the association constant for the formation of second‐generation cage L2 is nearly an order of magnitude higher than that of L1. This strengthened binding allows cage L2 to remain intact in polar and industrially relevant solvents. As a consequence, the unprecedented regioselectivity for branched aldehyde products can be maintained in polar and coordinating solvents by using the second‐generation assembly. John Wiley and Sons Inc. 2017-08-17 2017-10-20 /pmc/articles/PMC5697640/ /pubmed/28608592 http://dx.doi.org/10.1002/chem.201702113 Text en © 2017 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs (http://creativecommons.org/licenses/by-nc-nd/4.0/) License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
spellingShingle Full Papers
Wang, Xiaowu
Nurttila, Sandra S.
Dzik, Wojciech I.
Becker, René
Rodgers, Jody
Reek, Joost N. H.
Tuning the Porphyrin Building Block in Self‐Assembled Cages for Branched‐Selective Hydroformylation of Propene
title Tuning the Porphyrin Building Block in Self‐Assembled Cages for Branched‐Selective Hydroformylation of Propene
title_full Tuning the Porphyrin Building Block in Self‐Assembled Cages for Branched‐Selective Hydroformylation of Propene
title_fullStr Tuning the Porphyrin Building Block in Self‐Assembled Cages for Branched‐Selective Hydroformylation of Propene
title_full_unstemmed Tuning the Porphyrin Building Block in Self‐Assembled Cages for Branched‐Selective Hydroformylation of Propene
title_short Tuning the Porphyrin Building Block in Self‐Assembled Cages for Branched‐Selective Hydroformylation of Propene
title_sort tuning the porphyrin building block in self‐assembled cages for branched‐selective hydroformylation of propene
topic Full Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5697640/
https://www.ncbi.nlm.nih.gov/pubmed/28608592
http://dx.doi.org/10.1002/chem.201702113
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