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:
Mar. 20, 2018
Filed:
Oct. 10, 2008
Axel Pleschke, Mannheim, DE;
Thomas Schmidt, Neustadt, DE;
Joachim Gebhardt, Wachenheim, DE;
Sandra Loehr, Ludwigshafen, DE;
Michael Keil, Freinsheim, DE;
Jan Hendrik Wevers, Hohen-Suelzen, DE;
Axel Pleschke, Mannheim, DE;
Thomas Schmidt, Neustadt, DE;
Joachim Gebhardt, Wachenheim, DE;
Sandra Loehr, Ludwigshafen, DE;
Michael Keil, Freinsheim, DE;
Jan Hendrik Wevers, Hohen-Suelzen, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The present invention relates to a process for preparing sulfuric diamides of the general formula IRRN—S(O)—NH  (I)in which Rand Rare each independently a primary alkyl radical having from 1 to 8 carbon atoms, a secondary alkyl radical having from 3 to 8 carbon atoms or a cycloalkyl radical having from 5 to 8 carbon atoms, or, together with the nitrogen atom, form a 5- to 8-membered, saturated nitrogen heterocycle which, as well as the nitrogen atom, may have a further heteroatom selected from O and S as a ring member, where the nitrogen heterocycle is unsubstituted or may have 1, 2, 3 or 4 alkyl groups having in each case from 1 to 4 carbon atoms as substituents. The process comprises the following steps: