Conopco, Inc.

Nitto Belgium B.v.

Thomas James Farmer

James Hanley Clark

David William Thornthwaite

Bart Forier

Greet Bossaert

Duncan James Macquarrie

Charly Hoebers

Simon William Breeden

Con Robert McElroy

Joseph Kolawole Ogunjobi

Fergal Byrne

Andrew John Hunt

A process for preparing dialkyl terephalate comprising the following steps:&#x2014;i) providing furan-2,5-dicarboxylate; ii) esterifying the furan-2,5-dicarboxylate with alcohol to form furan-2,5-carboxylic acid dialkyl ester; iii) reacting the furan-2,5-carboxylic acid dialkyl ester with ethylene under Diels Alder conditions, elevated temperature and pressure and in the presence of a catalyst such that dialkyl terephthalate is produced; wherein the Diels-Alder reaction is free from solvent; wherein the catalyst comprises a clay comprising metal ions and having Lewis acidity.

Process for the production of dialkyl terephthalate

A process for the preparation of 2,2,5,5-tetramethyltetrahydrofuran (TMTHF) includes contacting a TMTHF precursor with a solid catalyst, where the TMTHF precursor is 2,5-dimethylhexane-2,5-diol and/or 2,5-dimethyl-4-hexen-2-ol, and where the solid catalyst is a beta zeolite. TMTHF produced by the process may be used as a solvent.

Preparation of TMTHF

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Heslington, United Kingdom

Thomas James Farmer