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Title: Catalysts For Hydrogenation And Hydrosilylation Methods Of Making And Using The Same

Abstract

A compound is provided including an organometallic complex represented by the formula I: wherein M is an atom of molybdenum or tangsten, Cp is substituted or unsubstituted cyclopentadienyl radical represented by the formula [C.sub.5 Q.sup.1 Q.sup.2 Q.sup.3 Q.sup.4 Q.sup.5 ], wherein Q.sup.1 to Q.sup.5 are independently selected from the group consisting of H radical, C.sub.1-20 hydrocarbyl radical, substituted hydrocarbyl radical, halogen radical, halogen-substituted hydrocarbyl radical, --OR, --C(O)R', --CO.sub.2 R', --SiR'.sub.3 and --NR'R", wherein R' and R" are independently selected from the group consisting of H radical, C.sub.1-20 hydrocarbyl radical, halogen radical, and halogen-substituted hydrocarbyl radical, wherein said Q.sup.1 to Q.sup.5 radicals are optionally linked to each other to form a stable bridging group, NHC is any N-heterocyclic carbene ligand, L is either any neutral electron donor ligand, wherein k is a number from 0 to 1 or L is an anionic ligand wherein k is 2, and A.sup.- is an anion. Processes using the organometallic complex as catalyst for hydrogenation of aldehydes and ketones are provided. Processes using the organometallic complex as catalyst for the hydrosilylation of aldehydes, ketones and esters are also provided.

Inventors:
 [1];  [2]
  1. Coram, NY
  2. Wading River, NY
Issue Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
OSTI Identifier:
879883
Patent Number(s):
6737531
Application Number:
10/320954
Assignee:
Brookhaven Science Associates, LLC (Upton, NY)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
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

Citation Formats

Dioumaev, Vladimir K, and Bullock, R Morris. Catalysts For Hydrogenation And Hydrosilylation Methods Of Making And Using The Same. United States: N. p., 2004. Web.
Dioumaev, Vladimir K, & Bullock, R Morris. Catalysts For Hydrogenation And Hydrosilylation Methods Of Making And Using The Same. United States.
Dioumaev, Vladimir K, and Bullock, R Morris. Tue . "Catalysts For Hydrogenation And Hydrosilylation Methods Of Making And Using The Same". United States. https://www.osti.gov/servlets/purl/879883.
@article{osti_879883,
title = {Catalysts For Hydrogenation And Hydrosilylation Methods Of Making And Using The Same},
author = {Dioumaev, Vladimir K and Bullock, R Morris},
abstractNote = {A compound is provided including an organometallic complex represented by the formula I: wherein M is an atom of molybdenum or tangsten, Cp is substituted or unsubstituted cyclopentadienyl radical represented by the formula [C.sub.5 Q.sup.1 Q.sup.2 Q.sup.3 Q.sup.4 Q.sup.5 ], wherein Q.sup.1 to Q.sup.5 are independently selected from the group consisting of H radical, C.sub.1-20 hydrocarbyl radical, substituted hydrocarbyl radical, halogen radical, halogen-substituted hydrocarbyl radical, --OR, --C(O)R', --CO.sub.2 R', --SiR'.sub.3 and --NR'R", wherein R' and R" are independently selected from the group consisting of H radical, C.sub.1-20 hydrocarbyl radical, halogen radical, and halogen-substituted hydrocarbyl radical, wherein said Q.sup.1 to Q.sup.5 radicals are optionally linked to each other to form a stable bridging group, NHC is any N-heterocyclic carbene ligand, L is either any neutral electron donor ligand, wherein k is a number from 0 to 1 or L is an anionic ligand wherein k is 2, and A.sup.- is an anion. Processes using the organometallic complex as catalyst for hydrogenation of aldehydes and ketones are provided. Processes using the organometallic complex as catalyst for the hydrosilylation of aldehydes, ketones and esters are also provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {5}
}

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Works referenced in this record:

Titanocene-Catalyzed Reduction of Lactones to Lactols
journal, November 1997


New Weakly Coordinating Anions. III. Useful Silver and Trityl Salt Reagents of Carborane Anions
journal, March 1994


N-Heterocyclic Carbenes
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Recent Advances in the Hydrosilylation and Related Reactions
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Carboranes:  A New Class of Weakly Coordinating Anions for Strong Electrophiles, Oxidants, and Superacids
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Titanocene-Catalyzed Reduction of Esters Using Polymethylhydrosiloxane as the Stoichiometric Reductant
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Catalytic hydrosilylation of organic esters using manganese carbonyl acetyl complexes.
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An air-stable catalyst system for the conversion of esters to alcohols
journal, July 1992