Mechanistic Aspects of Dihydrogen Activation and Transfer During Asymmetric Hydrogenation in Supercritical Carbon Dioxide

Susanne Lange; Axel Brinkmann; Peter Trautner; Klaus Woelk; Joachim Bargon; Walter Leitner

doi:10.1002/(SICI)1520-636X(2000)12:5/6<450

Mechanistic Aspects of Dihydrogen Activation and Transfer During Asymmetric Hydrogenation in Supercritical Carbon Dioxide

Susanne Lange
, Axel Brinkmann
, Peter Trautner
, Klaus Woelk
, Joachim Bargon
, Walter Leitner

Chemistry

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

Abstract

A new 'CO ₂ -philic' chiral rhodium diphosphinite complex was synthesized and applied as catalyst precursor in the asymmetric hydrogenation of dimethyl itaconate in scCO ₂ , scC ₂ H ₆ and various liquid organic solvents. Deuterium labeling studies and parahydrogen-induced polarization (PHIP) NMR experiments were used to provide the first detailed mechanistic insight into the activation and transfer of the dihydrogen molecule during hydrogenation in scCO ₂ . Chemical interactions between CO ₂ and reactive intermediates of the catalytic pathway could be excluded as possible explanations for the experimentally verified difference in the catalytic behavior in scCO ₂ and hexane.

Original language	American English
Journal	Chirality
Volume	12
DOIs	https://doi.org/10.1002/(SICI)1520-636X(2000)12:5/6<450
State	Published - May 1 2000

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Chemistry

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title = "Mechanistic Aspects of Dihydrogen Activation and Transfer During Asymmetric Hydrogenation in Supercritical Carbon Dioxide",

abstract = " A new 'CO 2 -philic' chiral rhodium diphosphinite complex was synthesized and applied as catalyst precursor in the asymmetric hydrogenation of dimethyl itaconate in scCO 2 , scC 2 H 6 and various liquid organic solvents. Deuterium labeling studies and parahydrogen-induced polarization (PHIP) NMR experiments were used to provide the first detailed mechanistic insight into the activation and transfer of the dihydrogen molecule during hydrogenation in scCO 2 . Chemical interactions between CO 2 and reactive intermediates of the catalytic pathway could be excluded as possible explanations for the experimentally verified difference in the catalytic behavior in scCO 2 and hexane.",

author = "Susanne Lange and Axel Brinkmann and Peter Trautner and Klaus Woelk and Joachim Bargon and Walter Leitner",

year = "2000",

month = may,

day = "1",

doi = "10.1002/(SICI)1520-636X(2000)12:5/6<450",

language = "American English",

volume = "12",

journal = "Chirality",

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TY - JOUR

T1 - Mechanistic Aspects of Dihydrogen Activation and Transfer During Asymmetric Hydrogenation in Supercritical Carbon Dioxide

AU - Lange, Susanne

AU - Brinkmann, Axel

AU - Trautner, Peter

AU - Woelk, Klaus

AU - Bargon, Joachim

AU - Leitner, Walter

PY - 2000/5/1

Y1 - 2000/5/1

N2 - A new 'CO 2 -philic' chiral rhodium diphosphinite complex was synthesized and applied as catalyst precursor in the asymmetric hydrogenation of dimethyl itaconate in scCO 2 , scC 2 H 6 and various liquid organic solvents. Deuterium labeling studies and parahydrogen-induced polarization (PHIP) NMR experiments were used to provide the first detailed mechanistic insight into the activation and transfer of the dihydrogen molecule during hydrogenation in scCO 2 . Chemical interactions between CO 2 and reactive intermediates of the catalytic pathway could be excluded as possible explanations for the experimentally verified difference in the catalytic behavior in scCO 2 and hexane.

AB - A new 'CO 2 -philic' chiral rhodium diphosphinite complex was synthesized and applied as catalyst precursor in the asymmetric hydrogenation of dimethyl itaconate in scCO 2 , scC 2 H 6 and various liquid organic solvents. Deuterium labeling studies and parahydrogen-induced polarization (PHIP) NMR experiments were used to provide the first detailed mechanistic insight into the activation and transfer of the dihydrogen molecule during hydrogenation in scCO 2 . Chemical interactions between CO 2 and reactive intermediates of the catalytic pathway could be excluded as possible explanations for the experimentally verified difference in the catalytic behavior in scCO 2 and hexane.

UR - https://scholarsmine.mst.edu/chem_facwork/1018

UR - https://doi.org/10.1002/(SICI)1520-636X(2000)12:5/6<450

U2 - 10.1002/(SICI)1520-636X(2000)12:5/6<450

DO - 10.1002/(SICI)1520-636X(2000)12:5/6<450

M3 - Article

C2 - 10824168

VL - 12

JO - Chirality

JF - Chirality

ER -

Mechanistic Aspects of Dihydrogen Activation and Transfer During Asymmetric Hydrogenation in Supercritical Carbon Dioxide

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