Graham M Mott, 331342 W Gooch Rd, Nixa, MO 65714

5124489, Jun 23, 1992

Sep 6, 1991

7/755913

John R. Durrwachter - Corpus Christi TX
Michael Meier - Frankfurt, DE
Graham N. Mott - Corpus Christi TX
Werner H. Mueller - Corpus Christi TX

Hoechst Celanese Corporation - Somerville NJ

C07C 4128

568630

Substituted phenethanol ethers are prepared by the catalytic reduction of corresponding substituted phenylglyoxal acetals. The catalytic reduction is carried out by reacting a substituted phenylglyoxal acetal with hydrogen in the presence of an acid catalyst and a metal catalyst. Certain substituted phenylglyoxal acetals, and more particularly, 4-hydroxyphenylglyoxal dialkyl acetals are prepared by reacting 4-hydroxyacetophenone with a primary or a secondary alkyl alcohol in the presence of a hydrogen ion (H+) source and a nitrosonium ion (NO+) source.

5498804, Mar 12, 1996

Mar 17, 1995

8/406266

James R. Sounik - Corpus Christi TX
Graham N. Mott - Corpus Christi TX
Charles B. Hilton - Corpus Christi TX

Hoechst Celanese Corporation - Sommerville NJ

C07C 3910

568764

The present invention provides a unique and novel way of producing carbinols such as 4-hydroxyphenylmethylcarbinol (HPMC). In this new process, a ketone such as 4-hydroxyacetophenone (4-HAP) is heated under suitable hydrogenation conditions of temperature and pressure in the presence of a suitable catalyst and for a sufficient period of time to form HPMC.

5523378, Jun 4, 1996

Sep 18, 1995

8/529697

James R. Sounik - Corpus Christi TX
Graham N. Mott - Corpus Christi TX
Charles B. Hilton - Corpus Christi TX

Hoechst Celanese Corporation - Sommerville NJ

C08G 802
C08G 6538

528125

The present invention provides a unique and novel way of producing polyhydroxystyrene which comprises the steps of (a) heating 4-hydroxyacetophenone under suitable hydrogenation conditions of temperature and pressure in the presence of a suitable palladium catalyst and a basic material and for a sufficient period of time to form 4-hydroxyphenylmethylcarbinol; (b) heating 4-hydroxyphenylmethylcarbinol under suitable conditions of temperature and pressure and for a sufficient period of time to form said polyhydroxystyrene.

4607125, Aug 19, 1986

Apr 8, 1985

6/721007

Graham N. Mott - Corpus Christi TX

Celanese Corporation - New York NY

C07C 4546

568319

A process of acylating a monocyclic phenolic reactant, e. g. phenol to a hydroxy aromatic ketone, e. g. 4-hydroxyacetophenone, by contacting the phenolic reactant with about 0. 4 to 0. 8 moles of a carboxylic acid anhydride, e. g. acetic anhydride as acylating agent per mole of phenolic reactant of in the presence of a Friedel-Crafts catalyst, e. g. hydrogen fluoride. The process generally results in phenolic reactant conversions of at least about 80% and reaction selectivities to hydroxy aromatic ketone of at least about 70%.

4754081, Jun 28, 1988

Feb 9, 1987

7/012419

Graham N. Mott - Corpus Christi TX

Hoechst Celanese Corporation - Somerville NJ

C07C 3700

568806

Alkylenebisphenols and alkyltrisphenols are dearylated under mild conditions of temperature and pressure in the absence of HF to obtain alkyl and/or alkenyl substitute or phenols and other related polymer products.

5166418, Nov 24, 1992

Dec 4, 1991

7/803744

Joel D. Hendricks - Virginia Beach VA
Graham N. Mott - Corpus Christi TX

Hoechst Celanese Corporation - Somerville NJ

C07C 5110

562406

A method is provided for the preparation of ibuprofen by carbonylating 1-(4'-isobutylphenyl)ethanol (IBPE) with carbon monoxide comprising initially a reaction mixture comprising IBPE, ibuprofen and a catalyst for the carbonylation with carbon monoxide under conditions to initiate the reaction, and continuing to feed carbon monoxide to the composition to produce the desired yield of ibuprofen. Preferably the catalyst comprises palladium and a monodentate phosphine ligand. The presence of ibuprofen in the feed composition when the reaction is initiated with CO makes it possible to obtain high selectivities to ibuprofen with substantially complete conversion of IBPE at much shorter reaction times than if no ibuprofen is present initially.

4981995, Jan 1, 1991

Mar 28, 1990

7/500645

Varadaraj Elango - Corpus Christi TX
Mark A. Murphy - Corpus Christi TX
Brad L. Smith - Portland TX
Kenneth G. Davenport - North Kingstown RI
Graham N. Mott - Corpus Christi TX
Edward G. Zey - Corpus Christi TX
Gary L. Moss - Corpus Christi TX

C07C 5112
C07C 5730

562406

A method is provided for the preparation of ibuprofen by carbonylating 1-(4'-isobutylphenyl)ethanol (IBPE) with carbon monoxide in an acidic aqueous medium, e. g. containing at least 10% of water based on the weight of IBPE initially added, at a temperature of at least about 10. degree. C. and a carbon monoxide pressure of at least about 500 psig, and in the presence of (1) a catalyst complex consisting essentially of a palladium compound in which the palladium has a valence of zero to 2 and is complexed with at least one monodentate phosphine ligand miscible with the organic phase of the reaction medium, the phosphorus/palladium mole ratio in said palladium compound and ligand being at least about 2:1 when the palladium/IBPE mole ratio is such that palladium=1 and IBPE=10,000 or more; (2) dissociated hydrogen ions from an acid which is substantially completely ionizable in dilute aqueous solution such that the mole ratio of hydrogen ions to IBPE added to the reaction zone is at least about 0. 15; and, (3) dissociated halide ions such that the mole ratio of halide ions to IBPE added to the reaction zone is at least about 0. 15. Advantageously, a hydrogen halide is the source of hydrogen ions and halide ions.

5453483, Sep 26, 1995

Mar 17, 1995

8/406350

James R. Sounik - Corpus Christi TX
Graham N. Mott - Corpus Christi TX
Charles B. Hilton - Corpus Christi TX

Hoechst Celanese Corporation - Somerville NJ

C08G 6538

528212

The present invention provides a unique and novel way of producing vinyl phenols such as poly(4-hydroxystyrene) (PHS). In this new process, 4-hydroxyphenylmethylcarbinol (HPMC) is heated under suitable conditions of temperature and pressure and for a sufficient period of time to form the poly (4-hydroxystyrene) (PHS).