| 6147227 |
Process for preparing phthalides |
Klemens Massonne, Rainer Becker, Horst Neuhauser, Wolfgang Reif, Peter Cramers +1 more |
2000-11-14 |
| 5840981 |
Process for producing N-methyl-2(3,4 dimethoxyphenyl)-ethylamine |
Eberhard Fuchs, Tom Witzel, Boris Breitscheidel, Rainer Becker, Horst Nauhauser |
1998-11-24 |
| 5648545 |
Preparation of amines from nitriles by alkylation with a nitrogen compound in the presence of a copper oxide/zirconium oxide catalyst |
Wolfgang Reif, Michael Hesse, Heinz Lingk |
1997-07-15 |
| 5463130 |
Preparation of peralkylated amines |
Tom Witzel, Eberhard Fuchs |
1995-10-31 |
| 5319111 |
Preparation of tetrahydrofuran and gamma-butyrolactone |
Karl Brenner, Hans-Juergen Scheiper, Wolfgang Sauer, Horst Hartmann |
1994-06-07 |
| 5319148 |
Preparation of pyrocatechol monoethers and pyrocatechols |
Michael Karcher, Jochem Henkelmann |
1994-06-07 |
| 5296614 |
Preparation of phthalides |
Jochem Henkelmann, Thomas Ruehl |
1994-03-22 |
| 5252755 |
Preparation of 4-hydroxymethyltetrahydropyrans |
Jochem Henkelmann, Thomas Ruehl, Norbert Goetz, Wolfgang Spiegler, Thomas Kuekenhoehner |
1993-10-12 |
| 5194232 |
Process for the preparation of tantalum/niobium hydroxides and oxides with a low fluoride content |
Walter Bludssus, Erk-Rudiger Feuerhahn |
1993-03-16 |
| 4940805 |
Preparation of 1,4-butanediol or tetrahydrofuran or both |
Rolf Fischer, Hans-Juergen Gosch, Wolfgang Harder, Klaus-Dieter Malsch, Manfred Eggersdorfer +5 more |
1990-07-10 |
