Eastman Chemical Company

Grupo Petrotemex S.a. De C.v.

Flexsys Holdings, Inc.

Robert Thomas Hembre

Scott Donald Barnicki

Sumit Chakraborty

Steven J Adams

Mesfin Ejerssa Janka

Stephen Neal Falling

Shane Kipley Kirk

Jonathan Michael Penney

Frederick Ignatz-Hoover

Charles Michael Buchanan

Robert Lin

Norma Lindsey Buchanan

Juanelle Little Lambert

Elaine Beatrice Mackenzie

Christopher Hardacre

Chester Wayne Sink

Larry Wayne Blair

Venkata Bharat Ram Boppana

Thauming Kuo

Michael Eugene Donelson

Gerald Charles Tustin

Walter Leitner

Bin Wang

Damon Ray Billodeaux

Charles Edwan Sumner, Jr

Thomas James Devon

Brent Alan Tennant

Matthew Allen Boone

Jerome Leonard Stavinoha, Jr

David Lange

Gino Georges Lavoie

Zhufang Liu

James Allen Ponasik, Jr

David John Cole-Hamilton

Robert Sterling Kline

Michael Richard Laningham

Venkateswarlu Bhamidi

Andrew Neil Smith

Henk Kreulen

Joy Lynn Laningham

Kelley Margaret Moran

Guoxiong Hua

John Derek Woollins

Jürgen Klankermayer

Stefan Westhues

Mark Robert Shelton

Maryna Grigorievna Gorbunova

David Alan Jenkins

Aruna Mani Velamakanni

Yue Rachel Hu

Edwin Franklin Holcombe, Iii

Randy Lynn Jennings

Paul S Wagenknecht

Stijn Van De Vyver

Stephanie Rollins Testerman

Jingyi Liu

Kenneth Wayne Hampton, Jr

Robert Jacks Sharpe

Christopher Harlan Burk

Daniel Latham Terrill

Ginette Struck Tolleson

Timothy Alan Upshaw

Andrew James Vetter

Leslie Sharon Depew

Robert Scott Huss

Joseph Nathaniel Bays

Vickie Haygood Osborne

Xiaopeng Shan

Bryan Wayne Davenport

Daniel Burts Compton

Thomas Richard Floyd

James Allen Ponasik

Dewey Wayne Fuller, Jr

Rebecca How

Andreas Rosen

Matt Clarke

Jan Hendrik Blank

Gerald Wayne Ollis

Manik Lal Saha

Gerarld Wayne Ollis

Vikram Seshadri

Chenchy Lin

Ronald H Arthur

Silu Wang

David William Rooney

Fei Qi

Aruna M Velamakanni

An efficient process useful for the self-condensation of aliphatic aldehydes is provided, catalyzed by dialkylammonium carboxylate salts. In particular, the invention provides a facile method for the preparation of 2-ethyl hexenal via the self-condensation of butyraldehyde using various dialkylammonium carboxylates, e.g., diisopropylammonium acetate or dimethylammonium acetate, as catalyst. Additionally, residual nitrogen arising from the catalyst can be reduced to −100 ppm levels in the product via a simple washing procedure. The invention provides a process for preparing alkenals under conditions which limit the formation of undesired impurities and high-boiling oligomeric substances.

Self-condensation of aldehydes

Provided is a process for the preparation of certain 1,4-bicyclo[2.2.2]octane derivatives. The new synthetic procedure involves treating 1,4-dimethylene cyclohexane with an oxidizing agent in the presence of a transition metal catalyst to afford an oxo-substituted bicyclo[2.2.2]octane species. This intermediate structure can then be further derivatized. The processes of this disclosure thus affords a novel and simplified means for the commercial production of a wide variety of bicyclo[2.2.2]octane derivatives.

Synthesis of bicyclo[2.2.2]octane derivatives

A compound by the name 1,1,1-tris(di(3,5-dimethoxyphenyl)phosphino-methyl)ethane. The compound can be represented by the structure of formula (I): The compound is useful as a ligand for ruthenium to form an organometallic complex. The complex is an active catalyst for the hydrogenolysis of amides to form amines and optionally alcohols.

Molecular catalysts for selective hydrogenolysis of amides

The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.

Method for the manufacture of cyclododecasulfur

Vulcanizable elastomeric formulation are disclosed. The formulations comprise at least one elastomer; a vulcanizing agent comprising cyclododecasulfur; and a prevulcanization inhibitor, present in an amount, for example, from about 0.01 phr to about 10 phr. The formulations, when vulcanized, provide articles that exhibit improved durability.

Durable elastomeric compositions employing cyclododecasulfur as a vulcanizing agent

A process for the transesterification of methyl-2-ethylhexanoate with triethylene glycol to produce triethylene glycol di-2-ethylhexanoate is provided. In the process, methyl-2-ethylhexanoate is combined with triethylene glycol to form a first mixture. The first mixture is heated in the presence of a catalyst to form a second mixture comprising methanol and triethylene glycol di-2-ethylhexanoate. Methanol is separated from the second mixture to yield triethylene glycol di-2-ethylhexanoate. NaCO, CsCO, KCO, RbCO, sodium methoxide or titanium isopropoxide are suitable catalysts.

Synthesis of triethylene glycol bis(2-ethylhexanoate)

A compound represented by the structure of formula (I):  The compound is useful as a ligand for ruthenium to form an organometallic complex. The complex may be immobilized on an oxidic support to form an active, heterogeneous catalyst for the hydrogenolysis of amides to form amines and optionally alcohols.

Immobilized ruthenium-triphos catalysts for selective hydrogenolysis of amides

Provided is a process for the preparation of certain 1,4-bicyclo[2.2.2]octane derivatives. The new synthetic procedure involves treating 1,4-dimethylene cyclohexane with an oxidizing agent in the presence of a transition metal catalyst comprising a palladium compound to afford certain oxo-substituted bicyclo[2.2.2]octane species. The process of the invention thus affords a novel and simplified means for the commercial production of a wide variety of bicyclo[2.2.2]octane derivatives.

Synthesis of bicyclo[2.2.2]octanes

A process for making methyl esters in high yields is provided. The process comprises contacting aliphatic or aromatic aldehydes and methanol with an iron catalyst, to catalyze the dehydrogenative coupling between aliphatic or aromatic aldehydes and methanol. The reaction is highly selective (&#x3c;99.9%) toward the formation of methyl esters over homoesters and alcohols and operates at temperatures of less than 100&#xb0; C. for 2-8 hours.

Iron-catalyzed selective production of methyl esters from aldehydes

A process for making methyl esters in high yields. The process comprises contacting aliphatic or aromatic aldehydes and methanol with a homogeneous dimeric ruthenium catalyst, to catalyze the dehydrogenative coupling between aliphatic or aromatic aldehydes and methanol. The reaction is highly selective (&#x3c;99.9%) toward the formation of methyl esters over homoesters and alcohols and operates at temperatures of less than 100&#xb0; C. for 2-8 hours.

Process for the production of esters

Disclosed is a process for recovering formic acid from a formate ester of a Cto Calcohol. Disclosed is also a process for producing formic acid by carbonylating a Cto Calcohol, hydrolyzing the formate ester of the alcohol, and recovering a formic acid product. The alcohol may be dried and returned to the reactor. The process enables a more energy efficient production of formic acid than the carbonylation of methanol to produce methyl formate.

Process for making formic acid utilizing lower-boiling formate esters

A vulcanizing composition useful for the vulcanization of vulcanizable formulations is disclosed. The vulcanizing composition includes a vulcanizing agent which in turn includes a cyclododecasulfur compound. A cyclododecasulfur compound characterized by a DSC melt point onset of between 155&#xb0; C. and 167&#xb0; C. when measured at a DSC heat rate of 20&#xb0; C./minute is also disclosed.

Vulcanizing composition containing cyclododecasulfur and improved cyclododecasulfur compound

Disclosed is a process for recovering formic acid from a formate ester that allows for recovery of a formic acid product comprising greater than 75 wt. % formic acid. Disclosed is also a process for producing formic acid by carbonylating a carrier alcohol, hydrolyzing the formate ester of the carrier alcohol, and recovering a formic acid product comprising greater than 70 wt. % formic acid. Discloses are carrier alcohols that enable more favorable hydrolysis equilibriums and/or distillation sequences.

Process for making formic acid utilizing higher-boiling formate esters

A process for preparing a variety of secondary and tertiary alkyl formate esters via the coupling of methanol and secondary (or tertiary) alcohols. Iron-based catalysts, supported by pincer ligands, are employed to produce these formate esters in high yields and unprecedentedly high selectivities (&#x3e;99%). Remarkably, the coupling strategy is also applicable to bulkier tertiary alcohols, which afford corresponding tertiary formate esters in moderately high yields and high selectivities.

Iron-catalyzed cross-coupling of methanol with secondary or tertiary alcohols to produce formate esters

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Johnson City, TN, United States of America

Robert Thomas Hembre