Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno

Clariant International Ltd

Universiteit Utrecht Holding B.v.

Pieter Cornelis Antonius Bruijnincx

Hans Joachim Metz

Dirk Leinweber

Marc Crockatt

Franz Xaver Scherl

Johan Urbanus

Anton Kaiser

Bart Fölker

Fiona Kirby

Christopher Stuart Lancefield

Bert Marc Weckhuysen

The present invention is directed to the preparation of phthalic anhydride compounds and the intermediate phthalide compounds. In particular, the invention is directed to an improved bio-based route from furanic compounds to phthalic anhydride compounds by reacting furfuryl alcohol (i.e. 2-hydroxymethylfuran) or an analogue thereof having a nucleophilic atom on the 2-methyl, with a dienophile comprising an &#x3b1;,&#x3b2;-unsaturated carbonyl comprising an &#x3b1;'-leaving group. The inventions further involved preparation of phthalic anhydride compounds, phthalic acid compounds and reduction products of the intermediate phthalide compounds.

Diels-Alder reaction with furanics to obtain aromatics

The invention relates to a method for preparing polyglycerol, comprising &#x2014;providing a catalyst salt on a support, the catalyst salt having catalytic activity with respect to an etherification reaction of a polyol selected from the group of glycerol and oligoglycerols, &#x2014;contacting the catalyst salt on the support with a fluid phase comprising a polyol selected from the group of glycerol and oligoglycerols, &#x2014;and subjecting the polyol in the fluid phase to an etherification reaction in the presence of the catalyst salt, thereby forming the polyglycerol.

Preparation of polyglycerols

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Utrecht, Netherlands

Pieter Cornelis Antonius Bruijnincx