Catalytic ionic hydrogenation of ketones using tungsten or molybdenum catalysts with increased lifetimes
Abstract
The present invention is a process for the catalytic hydrogenation of ketones and aldehydes to alcohols at low temperatures and pressures using organometallic molybdenum and tungsten complexes and the catalyst used in the process. The reactants include a functional group which is selected from groups represented by the formulas R*(C.dbd.O)R' and R*(C.dbd.O)H, wherein R* and R' are selected from hydrogen or any alkyl or aryl group. The process includes reacting the organic compound in the presence of hydrogen and a catalyst to form a reaction mixture. The catalyst is prepared by reacting Ph.sub.3 C.sup.+ A.sup.- with a metal hydride. A.sup.- represents an anion and can be BF.sub.4.sup.-, PF.sub.6.sup.-, CF.sub.3 SO.sub.3.sup.- or Bar'.sub.4.sup.-, wherein Ar'=3,5-bis(trifluoromethyl)phenyl. The metal hydride is represented by the formula: HM(CO).sub.2 [.eta..sup.5 :.eta..sup.1 --C.sub.5 H.sub.4 (XH.sub.2).sub.n PR.sub.2 ] wherein M represents a molybdenum (Mo) atom or a tungsten (W) atom; X is a carbon atom, a silicon atom or a combination of carbon (C) and silicon (Si) atoms; n is any positive integer; R represents two hydrocarbon groups selected from H, an aryl group and an alkyl group, wherein both R groups can be the same or different. The metal hydride is reacted with Ph.sub.3 C.sup.+ A.sup.- eithermore »
- Inventors:
- Issue Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1174475
- Patent Number(s):
- 6613923
- Application Number:
- 09/552,212
- Assignee:
- Brookhaven Science Associates, LLC (Upton, NY)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS
- DOE Contract Number:
- AC02-98CH10886
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Bullock, R. Morris, Kimmich, Barbara F. M., Fagan, Paul J., and Hauptman, Elisabeth. Catalytic ionic hydrogenation of ketones using tungsten or molybdenum catalysts with increased lifetimes. United States: N. p., 2003.
Web.
Bullock, R. Morris, Kimmich, Barbara F. M., Fagan, Paul J., & Hauptman, Elisabeth. Catalytic ionic hydrogenation of ketones using tungsten or molybdenum catalysts with increased lifetimes. United States.
Bullock, R. Morris, Kimmich, Barbara F. M., Fagan, Paul J., and Hauptman, Elisabeth. Tue .
"Catalytic ionic hydrogenation of ketones using tungsten or molybdenum catalysts with increased lifetimes". United States. https://www.osti.gov/servlets/purl/1174475.
@article{osti_1174475,
title = {Catalytic ionic hydrogenation of ketones using tungsten or molybdenum catalysts with increased lifetimes},
author = {Bullock, R. Morris and Kimmich, Barbara F. M. and Fagan, Paul J. and Hauptman, Elisabeth},
abstractNote = {The present invention is a process for the catalytic hydrogenation of ketones and aldehydes to alcohols at low temperatures and pressures using organometallic molybdenum and tungsten complexes and the catalyst used in the process. The reactants include a functional group which is selected from groups represented by the formulas R*(C.dbd.O)R' and R*(C.dbd.O)H, wherein R* and R' are selected from hydrogen or any alkyl or aryl group. The process includes reacting the organic compound in the presence of hydrogen and a catalyst to form a reaction mixture. The catalyst is prepared by reacting Ph.sub.3 C.sup.+ A.sup.- with a metal hydride. A.sup.- represents an anion and can be BF.sub.4.sup.-, PF.sub.6.sup.-, CF.sub.3 SO.sub.3.sup.- or Bar'.sub.4.sup.-, wherein Ar'=3,5-bis(trifluoromethyl)phenyl. The metal hydride is represented by the formula: HM(CO).sub.2 [.eta..sup.5 :.eta..sup.1 --C.sub.5 H.sub.4 (XH.sub.2).sub.n PR.sub.2 ] wherein M represents a molybdenum (Mo) atom or a tungsten (W) atom; X is a carbon atom, a silicon atom or a combination of carbon (C) and silicon (Si) atoms; n is any positive integer; R represents two hydrocarbon groups selected from H, an aryl group and an alkyl group, wherein both R groups can be the same or different. The metal hydride is reacted with Ph.sub.3 C.sup.+ A.sup.- either before reacting with the organic compound or in the reaction mixture.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 02 00:00:00 EDT 2003},
month = {Tue Sep 02 00:00:00 EDT 2003}
}
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