David Richard Westphal

US Patent:

6545185, Apr 8, 2003

Filed:

Oct 17, 2001

Appl. No.:

09/978778

Inventors:

Jack S. Warren - Blountville TN
David R. Westphal - Chanhassen MN
Steve J. Zoubek - Otsego MN

Assignee:

EagleView Technologies, Inc. - Minneapolis MN

International Classification:

C07C 4572

US Classification:

568338, 568343, 568346, 568354

Abstract:

A method and apparatus for the production of ketones via a one-step synthesis from aldehydes. In the method of the invention, an aldehyde, a carboxylic acid, and a source of oxygen, such as water, are allowed to react in the vapor phase in a catalytic tube reactor. Asymmetrical ketones, such as methyl cyclopropyl ketone, are particularly desirable reaction products.

US Patent:

20020143213, Oct 3, 2002

Filed:

Oct 9, 2001

Appl. No.:

09/974189

Inventors:

Jack Warren - Blountville TN, US
David Westphal - Chanhassen MN, US
Steve Zoubek - Otsego MN, US

International Classification:

C07C323/32
C07C233/06
C07C045/27

US Classification:

568/041000, 560/130000, 564/305000, 568/312000, 568/431000

Abstract:

A method and an apparatus for producing aromatic aldehydes, including benzaldehyde and metatolualdehyde. Raw materials and a source of oxygen are fed into a tube reactor. The raw materials may be in a liquid or vapor phase. The reaction to form the aldehyde is catalyzed by suitable solid or liquid catalysts, including copper containing catalysts.

US Patent:

20040171880, Sep 2, 2004

Filed:

Oct 17, 2001

Appl. No.:

09/982105

Inventors:

Jack Warren - Blountville TN, US
David Westphal - Chanhassen MN, US
Steve Zoubek - Otsego MN, US

International Classification:

C07C231/02

US Classification:

564/139000

Abstract:

A process for the production of an amide comprising: (a) reacting R—CX and oxygen to form R—COOH, wherein the reacting occurs in the liquid or vapor phase and in the presence of a first catalyst, wherein X is a group that leaves upon oxidation, and wherein Ris phenyl, which is unsubstituted or substituted by one or more identical or different radicals selected from (C-C)-alkyl, (C-C)-alkoxy, (C-C)-alkanoyloxy, (C-C)-alkanoyl, amino, hydroxyl, —CH—O—(C-C)-alkyl, —NH—(C-C)-alkyl, —NH—CO—(C-C)-alkyl, or —S—(C-C)-alkyl; (b) separating the R—COOH from the mixture formed in step (a), wherein the R—COOH is maintained in a liquid or vapor phase; and (c) reacting the R—COOH maintained in the liquid or vapor phase from step (b) with an amine to form an amide, wherein the reacting occurs in the vapor phase and in the presence of a second catalyst.