1
Disteldorf Walter Dr, Eisfeld Wolfgang Dr, Hellbach Hans: Process for preparing 2-methoxyalkanoic acids.. BASF, September 21, 1983: EP0088961-A1 (10 worldwide citation)

1. A process for the preparation of 2-methoxy-alkanoic acid of 2 to 5 carbon atoms by oxidation of the corresponding 2-methoxyalkanols with nitric acid in the presence of vanadate ions as catalyst, at temperatures below 90 degrees C, and separation of the 2-methoxyalkanoic acid by distillation, wher ...


2
Kempe Uwe Dr, Disteldorf Walter Dr, Dockner Toni Dr, Eisfeld Wolfgang Dr: Process for the preparation of imidazole-4,5-dicarboxylic acids substituted in position 2.. BASF, April 16, 1986: EP0177681-A1 (3 worldwide citation)

1. A process for the preparation of 2-substituted imidazole-4,5-dicarboxylic acids of the formula see diagramm : EP0177681,P5,F2 where R is alkyl of 1 to 17 carbon atoms which may furthermore contain radicals of the formula R'O-, R'2 N- or R'S- or aryl groups, or where R is aryl, and R' is alkyl of ...


3
Disteldorf Walter Dr, Eisfeld Wolfgang Dr: Process for the preparation of 2-methoxyalkanoic acids.. BASF, March 31, 1982: EP0048396-A1 (2 worldwide citation)

1. A process for the preparation of a 2-methoxyalkanoic acid of 2 to 5 carbon atoms by oxidizing the corresponding 2-methoxyalkanol with nitric acid in the presence of vanadate ions as the catalyst, at below 90 degrees C, and isolating the 2-methoxyalkanoic acid by distillation, wherein (a) less tha ...


4
Disteldorf Walter Dr, Eisfeld Wolfgang Dr, Hellbach Hans: Process for the preparation of polyethyleneglycolcarboxylic acids.. BASF, September 21, 1983: EP0088962-A1 (1 worldwide citation)

1. A process for the preparation of polyethylene glycol carboxylic acids by treating polyethylene glycols or their monomethyl ethers with excess nitric acid in the presence of a vanadium compound as catalyst, at elevated temperature, and working up the reaction mixture by distillation, wherein the r ...


5
Disteldorf Walter Dr, Eisfeld Wolfgang Dr, Kohler Rolf Dieter Dr: Process for preparing 4,4-diamino-benzophenone.. BASF, June 19, 1985: EP0144830-A1

Die Erfindung betrifft ein Verfahren zur Herstellung von 4,4'-Diaminobenzophenonen der Formel I in der die Ringe A und B noch substituiert sein können, das dadurch gekennzeichnet ist, dass man Verbindungen der Formel II in der die Ringe A, B und E substituiert sein können, in Gegenwart von Nitrobenz ...