Catalytic ionic hydrogenation of ketones using tungsten or molybdenum organometallic species
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. The functional group 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 active catalyst for the process has the form: [CpM(CO).sub.2 (PR*.sub.3) L].sup.+ A.sup.-, where Cp=.eta..sup.5 -R.sup..tangle-solidup..sub.m C.sub.5 H.sub.5-m and R.sup..tangle-solidup. represents an alkyl group or a halogen (F, Cl, Br, I) or R.sup..tangle-solidup. =OR' (where R'=H, an alkyl group or an aryl group) or R.sup..tangle-solidup. =CO.sub.2 R' (where R'=H, an alkyl group or an aryl group) and m=0 to 5; M represents a molybdenum atom or a tungsten atom; R*.sub.3 represents three hydrocarbon groups selected from a cyclohexyl group (C.sub.6 H.sub.11), a methyl group (CH.sub.3), and a phenyl group (C.sub.6 H.sub.5) and all three R* groups can be the same or different or two of the three groups can be the same; L represents a ligand; and A.sup.- represents an anion. In another embodiment, one, two or three of the R* groups can be an OR*.
- Inventors:
-
- Leverkusen, DE
- Wading River, NY
- Issue Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- OSTI Identifier:
- 873265
- Patent Number(s):
- 6124509
- Assignee:
- Brookhaven Science Associates (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:
- catalytic; ionic; hydrogenation; ketones; tungsten; molybdenum; organometallic; species; process; aldehydes; alcohols; temperatures; pressures; complexes; functional; selected; represented; formulas; dbd; hydrogen; alkyl; aryl; active; catalyst; form; cpm; cp; eta; -r; tangle-solidup; 5-m; represents; halogen; br; atom; hydrocarbon; cyclohexyl; 11; methyl; phenyl; ligand; anion; embodiment; active catalyst; catalytic hydrogenation; metallic species; /999/
Citation Formats
Voges, Mark, and Bullock, R Morris. Catalytic ionic hydrogenation of ketones using tungsten or molybdenum organometallic species. United States: N. p., 2000.
Web.
Voges, Mark, & Bullock, R Morris. Catalytic ionic hydrogenation of ketones using tungsten or molybdenum organometallic species. United States.
Voges, Mark, and Bullock, R Morris. Sat .
"Catalytic ionic hydrogenation of ketones using tungsten or molybdenum organometallic species". United States. https://www.osti.gov/servlets/purl/873265.
@article{osti_873265,
title = {Catalytic ionic hydrogenation of ketones using tungsten or molybdenum organometallic species},
author = {Voges, Mark and Bullock, R Morris},
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. The functional group 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 active catalyst for the process has the form: [CpM(CO).sub.2 (PR*.sub.3) L].sup.+ A.sup.-, where Cp=.eta..sup.5 -R.sup..tangle-solidup..sub.m C.sub.5 H.sub.5-m and R.sup..tangle-solidup. represents an alkyl group or a halogen (F, Cl, Br, I) or R.sup..tangle-solidup. =OR' (where R'=H, an alkyl group or an aryl group) or R.sup..tangle-solidup. =CO.sub.2 R' (where R'=H, an alkyl group or an aryl group) and m=0 to 5; M represents a molybdenum atom or a tungsten atom; R*.sub.3 represents three hydrocarbon groups selected from a cyclohexyl group (C.sub.6 H.sub.11), a methyl group (CH.sub.3), and a phenyl group (C.sub.6 H.sub.5) and all three R* groups can be the same or different or two of the three groups can be the same; L represents a ligand; and A.sup.- represents an anion. In another embodiment, one, two or three of the R* groups can be an OR*.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 2000},
month = {Sat Jan 01 00:00:00 EST 2000}
}
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