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:
Sep. 25, 2012
Filed:
Aug. 22, 2005
Lambertus Gerardus Maria Willems, Oss, NL;
Henricus Johannes Franciscus Maas, Oss, NL;
Martin Ostendorf, Oss, NL;
Lambertus Gerardus Maria Willems, Oss, NL;
Henricus Johannes Franciscus Maas, Oss, NL;
Martin Ostendorf, Oss, NL;
MSD Oss B.V., Oss, NL;
Abstract
Process for the preparation of a compound of general formula (II) wherein Rand Rindependently are hydrogen or a hydroxy- or hydrocarbyl group; or wherein Rand Rtogether are a double bonded oxygen; Ris hydrogen; R'is a nitrobenzophenone group; and Rand Rindependently are hydrogen or a hydroxy- or hydrocarbyl group; from a compound of general formula (I) wherein, R, RR, Rand Rare as defined above and Ris hydrogen; wherein the compound of formula (I) is reacted under alkaline conditions with 2-chloro-5-nitrobenzophenone in the presence of an alkanolic solvent and the compound of formula (II) is directly crystallized from this alkanolic solvent. Complex of an alkanol and a compound of general formula (II) obtainable from the above process and processes wherein the above process or complex are used.