Patent Number: 6,252,103

Title: Preparation on an O-alkylisourea

Abstract: A process for the preparation of an O-alkylisourea of the formula I, ##STR1## where R.sup.1 is C.sub.1 - to C.sub.20 -alkyl, in the form of an acid addition salt, in which urea and an alkyl-transferring reagent, if required dissolved or suspended in a diluent, are reacted at 40-200.degree. C. in a continuously operated reactor, is described. The diluent is preferably a recycled part-stream of the O-alkylisourea acid addition salt obtained.

Inventors: Kluge; Michael (Ludwigshafen, DE), Kessel; Knut (Mannheim, DE), Greindl; Thomas (Bad Durkheim, DE), Biedermann; Norbert (Bad Durkheim, DE), Scherr; Gunter (Ludwigshafen, DE), Bogenstatter; Thomas (Bad Durkheim, DE)

Assignee: BASF Aktiengesellschaft

International Classification: C07C 273/00 (20060101); C07C 275/70 (20060101); C07C 275/00 (20060101); C07C 273/00 ()

Expiration Date: 06/26/2018