Regioselectivity in the rhodium catalysed 1,4-hydrosilylation of isoprene. Aspects on reaction conditions and ligands

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Regioselectivity in the rhodium catalysed 1,4-hydrosilylation of isoprene. Aspects on reaction conditions and ligands. / Gustafsson, Magnus; Frejd, Torbjörn.

I: Journal of Organometallic Chemistry, Vol. 689, Nr. 2, 2004, s. 438-443.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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TY - JOUR

T1 - Regioselectivity in the rhodium catalysed 1,4-hydrosilylation of isoprene. Aspects on reaction conditions and ligands

AU - Gustafsson, Magnus

AU - Frejd, Torbjörn

N1 - The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Organic chemistry (S/LTH) (011001240)

PY - 2004

Y1 - 2004

N2 - The regioselectivity in the Rh catalysed 1,4-hydrosilylation of isoprene was investigated. Variation of solvents and temperature did not significantly affect the isomer distribution between tail-product (I) and head-product (II). The choice of ligands had the greater influence, where Rh-I-based catalysts with the strong electron withdrawing ligand CO favoured production of isomer II, while Rh-I catalysts with strong electron donating ligands (for example triarylphosphines) gave isomer I as the main product. In contrast to the square planar carbonyl complex RhCl(CO)(PPh3)(2), the square planar thiocarbonyl complex RhCl(CS)(PPh3)(2), gave I as the major isomer. (C) 2003 Elsevier B.V. All rights reserved.

AB - The regioselectivity in the Rh catalysed 1,4-hydrosilylation of isoprene was investigated. Variation of solvents and temperature did not significantly affect the isomer distribution between tail-product (I) and head-product (II). The choice of ligands had the greater influence, where Rh-I-based catalysts with the strong electron withdrawing ligand CO favoured production of isomer II, while Rh-I catalysts with strong electron donating ligands (for example triarylphosphines) gave isomer I as the main product. In contrast to the square planar carbonyl complex RhCl(CO)(PPh3)(2), the square planar thiocarbonyl complex RhCl(CS)(PPh3)(2), gave I as the major isomer. (C) 2003 Elsevier B.V. All rights reserved.

KW - Hydrosilylation

KW - Rhodium complexes

KW - Catalysis

KW - Regioselectivity

KW - Ligands

KW - Isoprene

U2 - 10.1016/j.jorganchem.2003.09.054

DO - 10.1016/j.jorganchem.2003.09.054

M3 - Article

VL - 689

SP - 438

EP - 443

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

SN - 0022-328X

IS - 2

ER -