Patent Number: 6,166,228

Title: Process for the production of 3-alky-3-hydroxymethyloxetanes

Abstract: A process is described for the production of 3-alkyl-3-hydroxymethyloxetanes of the general formula (1), ##STR1## in which R.sup.1 denotes a linear or branched C.sub.1 -C.sub.12 alkyl group, which process comprises reacting a trimethylolalkane of the general formula (2),in which R.sup.1 is defined as above, with a dialkyl carbonate of the general formula (3),in which R.sup.2 denotes a linear or branched C.sub.1 -C.sub.4 alkyl group, in the presence of a basic catalyst, wherein in a first stage the reaction mixture is stirred for at least 6 hours with refluxing at a temperature of 90-120.degree. C., in a second stage the alcohol formed R.sub.2 OH is distilled off at the same temperature and in a third stage the product formed is decarboxylated and deoligomerised at a temperature of 125-150.degree. C. and the desired 3-alkyl-3-hydroxymethyloxetane is simultaneously distilled off.

Inventors: Gaudl; Kai-Uwe (Berlin, DE), Lachowicz; Artur (Berlin, DE), Hoffmann; Andreas (Berlin, DE), Grahe; Gerwald (Berlin, DE)

Assignee: Dainippon Ink and Chemicals, Inc.

International Classification: C07D 305/00 (20060101); C07D 305/06 (20060101); C07D 305/14 ()

Expiration Date: 12/26/2013