The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 28, 1978
Filed:
Mar. 15, 1976
Bernd Lippsmeier, Hurth-Knapsack, DT;
Klaus Hestermann, Erftstadt-Bliesheim, DT;
Hoechst Aktiengesellschaft, Frankfurt am Main, DT;
Abstract
Production of tertiary hydroxyalkylphosphine oxides of general formula (I) ##STR1## in which R.sup.1 and R.sup.2 each stand for organic groups having from 1 to 18 carbon atoms, where R.sup.1 may be identical with R.sup.2 and R.sup.2 may be identical with R which stands for a radical of general formula (II) ##STR2## in which R.sup.3 and R.sup.4 equally stand for organic groups having from 1 to 18 carbon atoms and/or more preferably for hydrogen. The compounds are made from phosphines of general formula (III) ##STR3## in which R.sup.3 and R.sup.4 have the meanings given above, which are reacted in a single step operation with carbonyl compounds of general formula (IV) ##STR4## in which R.sup.3 and R.sup.4 equally have the meanings given above. The reaction is effected while adding at least one substance yielding hydroxyl ions and in the presence of water, and the resulting hydroxyalkylphosphine oxides are separated from the reaction product.