Eastman Chemical Company

Kelmara Khadene Kelly

Jerome Leonard Stavinoha, Jr

Carey Dan Ashcroft

Craig Alan Hoyme

Charles Edwan Sumner, Jr

Zhufang Liu

Kim S Chamberlin

Charles Everette Kelly

Lori Cooke Ensor

This invention is generally directed to a batch process for the preparation of cis-2,2,4,4-tetramethylcyclobutane-1,3-diol comprising:

Batch process for the preparation of cis-2,2,4,4-tetramethylcyclobutane-1,3-diol

This invention is generally directed to a process for the preparation of cis-2,2,4,4-tetramethylcyclobutane-1,3-diol comprising:

Process for the preparation of cis-2,2,4,4-tetramethylcyclobutane-1,3-diol

Disclosed is a process for the isomerization of 2,2,4,4-tetraalkylcyclobutane-1,3-diols, such as 2,2,4,4-tetramethylcyclobutane-1,3-diol, by contacting the diol with a supported ruthenium catalyst in the presence of hydrogen at elevated pressures and temperatures. The process is carried under conditions in which there is no net production of 2,2,4,4-tetraalkylcyclobutane-1,3-diol. The process may be carried out in the presence or absence of a solvent and in the liquid or vapor phase.

Process for the isomerization of 2,2,4,4-tetraalkylcyclobutane-1,3-diols

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Kingsport, TN, United States of America

Kelmara Khadene Kelly