A chiral diphosphine containing hemilabile ether donor groups and its use in rhodium asymmetric hydroboration of styrene

Jose L. Ruiz; Teresa Flor; J. Carles Bayón

doi:10.1016/S1387-7003(99)00128-8

A chiral diphosphine containing hemilabile ether donor groups and its use in rhodium asymmetric hydroboration of styrene

Jose L. Ruiz, Teresa Flor, J. Carles Bayón

Department of Chemistry

Research output: Contribution to journal › Article › Research › peer-review

13 Citations (Scopus)

Abstract

The new homochiral diphosphine (R,R) -o-C6H4[CH2OCH2CH(Me)PPh 2]2 (1) was prepared from ethyl lactate in five steps. Because of the two hemilabile ether groups, the ligand can be visualized as a diphosphine containing two intramolecular solvent molecules. The cationic Rh(I) complex [Rh(1)](BF4) was prepared and used as the catalyst in the asymmetric hydroboration of styrene with catecholborane. The catalytic system is chemo- and regioselective, but it yields low enantiomeric excess. ©1999 Elsevier Science S.A. All rights reserved.

Original language	English
Pages (from-to)	484-486
Journal	Inorganic Chemistry Communications
Volume	2
Issue number	10
DOIs	https://doi.org/10.1016/S1387-7003(99)00128-8
Publication status	Published - 1 Jan 1999

Keywords

Asymmetric catalysis
Catalytic hydroboration
Chiral diphosphine
Hemilabile ligand
Rhodium complexes

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10.1016/S1387-7003(99)00128-8

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title = "A chiral diphosphine containing hemilabile ether donor groups and its use in rhodium asymmetric hydroboration of styrene",

abstract = "The new homochiral diphosphine (R,R) -o-C6H4[CH2OCH2CH(Me)PPh 2]2 (1) was prepared from ethyl lactate in five steps. Because of the two hemilabile ether groups, the ligand can be visualized as a diphosphine containing two intramolecular solvent molecules. The cationic Rh(I) complex [Rh(1)](BF4) was prepared and used as the catalyst in the asymmetric hydroboration of styrene with catecholborane. The catalytic system is chemo- and regioselective, but it yields low enantiomeric excess. {\textcopyright}1999 Elsevier Science S.A. All rights reserved.",

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T1 - A chiral diphosphine containing hemilabile ether donor groups and its use in rhodium asymmetric hydroboration of styrene

AU - Ruiz, Jose L.

AU - Flor, Teresa

AU - Bayón, J. Carles

PY - 1999/1/1

Y1 - 1999/1/1

N2 - The new homochiral diphosphine (R,R) -o-C6H4[CH2OCH2CH(Me)PPh 2]2 (1) was prepared from ethyl lactate in five steps. Because of the two hemilabile ether groups, the ligand can be visualized as a diphosphine containing two intramolecular solvent molecules. The cationic Rh(I) complex [Rh(1)](BF4) was prepared and used as the catalyst in the asymmetric hydroboration of styrene with catecholborane. The catalytic system is chemo- and regioselective, but it yields low enantiomeric excess. ©1999 Elsevier Science S.A. All rights reserved.

AB - The new homochiral diphosphine (R,R) -o-C6H4[CH2OCH2CH(Me)PPh 2]2 (1) was prepared from ethyl lactate in five steps. Because of the two hemilabile ether groups, the ligand can be visualized as a diphosphine containing two intramolecular solvent molecules. The cationic Rh(I) complex [Rh(1)](BF4) was prepared and used as the catalyst in the asymmetric hydroboration of styrene with catecholborane. The catalytic system is chemo- and regioselective, but it yields low enantiomeric excess. ©1999 Elsevier Science S.A. All rights reserved.

KW - Asymmetric catalysis

KW - Catalytic hydroboration

KW - Chiral diphosphine

KW - Hemilabile ligand

KW - Rhodium complexes

U2 - 10.1016/S1387-7003(99)00128-8

DO - 10.1016/S1387-7003(99)00128-8

M3 - Article

SN - 1387-7003

VL - 2

SP - 484

EP - 486

JO - Inorganic Chemistry Communications

JF - Inorganic Chemistry Communications

IS - 10

ER -

A chiral diphosphine containing hemilabile ether donor groups and its use in rhodium asymmetric hydroboration of styrene

Abstract

Keywords

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