Paul Thomas Fagan

US Patent:

6350903, Feb 26, 2002

Filed:

Aug 30, 2000

Appl. No.:

09/650608

Inventors:

Paul J. Fagan - Wilmington DE
George Yanwu Li - Wilmington DE
Zhibin Guan - Hockessin DE
Lin Wang - Hockessin DE

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C07F 950

US Classification:

562 12

Abstract:

Novel reactions used to prepare phosphole and bisphosphole compounds are detailed. Novel phosphole compounds and metal coordination compounds of phosphole and bisphosphole compounds are also provided. These metal coordination compounds are useful as catalysts for the polymerization or olefins with carbon monoxide and for the polymerization of acrylic monomers.

US Patent:

6555717, Apr 29, 2003

Filed:

Jun 20, 2001

Appl. No.:

09/885824

Inventors:

R. Morris Bullock - Wading River NY
Marcel Schlaf - Guelph, CA
Paul Joseph Fagan - Wilmington DE
Elisabeth M. Hauptman - Wilmington DE

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE
Brookhaven Science Associates - Upton NY

International Classification:

C07C 4109

US Classification:

568619, 568698, 568799, 568861, 568903, 502152, 502161

Abstract:

Secondary alcohols, specifically diols and polyols, are dehydroxylated to the corresponding primary alcohols using a homogeneous organometallic ruthenium complex catalyst.

US Patent:

6579999, Jun 17, 2003

Filed:

Nov 13, 2001

Appl. No.:

10/044425

Inventors:

Paul J. Fagan - Wilmington DE 19803
George Yanwu Li - Wilmington DE 19809
Zhibin Guan - Hockessin DE 19707
Lin Wang - Hockessin DE 19707

International Classification:

C07F 950

US Classification:

556200, 556 18

Abstract:

Novel reactions used to prepare phosphole and bisphosphole compounds are detailed. Novel phosphole compounds and metal coordination compounds of phosphole and bisphosphole compounds are also provided. These metal coordination compounds are useful as catalysts for the polymerization or olefins with carbon monoxide and for the polymerization of acrylic monomers.

US Patent:

6613923, Sep 2, 2003

Filed:

Apr 19, 2000

Appl. No.:

09/552212

Inventors:

R. Morris Bullock - Wading River NY
Barbara F. M. Kimmich - Corpus Christi TX
Paul J. Fagan - Wilmington DE
Elisabeth Hauptman - Wilmington DE

Assignee:

Brookhaven Science Associates, LLC - Upton NY

International Classification:

C07F 1100

US Classification:

556 22, 556 23, 556 60, 502155, 568809, 568814, 568881

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 O)Râ and R*(C O)H, wherein R* and Râ 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 C A with a metal hydride. A represents an anion and can be BF , PF , CF SO or Barâ , wherein Arâ=3,5-bis(trifluoromethyl)phenyl. The metal hydride is represented by the formula: HM(CO) [ : âC H (XH ) PR ] 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 C A either before reacting with the organic compound or in the reaction mixture.

US Patent:

6689892, Feb 10, 2004

Filed:

May 24, 2001

Appl. No.:

09/864465

Inventors:

Mark Allen Andrews - Wilmington DE
Kamlesh Kumar Bhatia - Newark DE
Paul Joseph Fagan - Wilmington DE

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C07D49300

US Classification:

549464, 549478

Abstract:

This invention concerns a process for the manufacture of anhydro- and dianhydro- hexitols, pentitols, and tetritols by the dehydration of sugar alcohols (alditols) in the presence of a dehydration catalyst and with the assistance of an inert gas sparge.

US Patent:

6800719, Oct 5, 2004

Filed:

Apr 11, 2003

Appl. No.:

10/411997

Inventors:

Paul J. Fagan - Wilmington DE
George Yanwu Li - Wilmington DE
Zhibin Guan - Irvin CA
Lin Wang - Hockessin DE

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C08G 6700

US Classification:

528392, 528396

Abstract:

Novel reactions used to prepare phosphole and bisphosphole compounds are detailed. Novel phosphole compounds and metal coordination compounds of phosphole and bisphosphole compounds are also provided. These metal coordination compounds are useful as catalysts for the polymerization or olefins with carbon monoxide and for the polymerization of acrylic monomers.

US Patent:

6903182, Jun 7, 2005

Filed:

Jun 7, 2004

Appl. No.:

10/862647

Inventors:

Paul J. Fagan - Wilmington DE, US
George Yanwu Li - Wilmington DE, US
Zhibin Guan - Wilmington DE, US
Lin Wang - Wilmington DE, US

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C08G079/02

US Classification:

528398, 528399, 528425, 528373, 502162

Abstract:

Novel reactions used to prepare phosphole and bisphosphole compounds are detailed. Novel phosphole compounds and metal coordination compounds of phosphole and bisphosphole compounds are also provided. These metal coordination compounds are useful as catalysts for the polymerization or olefins with carbon monoxide and for the polymerization of acrylic monomers.

US Patent:

7098261, Aug 29, 2006

Filed:

Jul 1, 2002

Appl. No.:

10/187706

Inventors:

Paul J. Fagan - Wilmington DE, US
George Yanwu Li - Wilmington DE, US

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C08J 5/15

US Classification:

524110, 436518, 435 71, 525255

Abstract:

Novel phosphine and phosphine oxide ligands are prepared using polymeric supports. These compounds can be easily cleaved from the support, and along with the corresponding supported compounds, used as ligands in the preparation of novel, metal-complexed catalysts.