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Johannes Rudolf Jansen - Publications

Affiliations: 
Bayer CropScience AG 
Area:
small molecules, active ingridients
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8 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
1991 Bringmann G, Jansen JR. Stereocontrolled ring opening of Axially prostereogenic biaryl lactones with hydrogen nucleophiles: Directed synthesis of a dioncophylline A precursor and (optionally) its atropdiastereomer Synthesis. 825-827. DOI: 10.1055/S-1991-26581  0.363
1990 Bringmann G, Rubenacker M, Jansen JR, Geuder T, Ake Assi L. Isolation, structure elucidation, and stereoselective total synthesis of novel alkaloids from Triphyophyllum peltatum Planta Medica. 56: 495-496. DOI: 10.1055/S-2006-961025  0.401
1990 Bringmann G, Jansen JR, Reuscher H, Rübenacker M, Peters K, von Schnering HG. First total synthesis of (-)-dioncophylline A ("Triphyophylline") and of selected stereoisomers: Complete (revised) stereostructure Tetrahedron Letters. 31: 643-646. DOI: 10.1016/S0040-4039(00)94589-1  0.459
1990 Bringmann G, Rübenacker M, Jansen JR, Scheutzow D, Aké Assi L. On the structure of the dioncophyllaceae alkaloids dioncophylline a ("triphyophylline") and "O-Methyl-Triphyophylline" Tetrahedron Letters. 31: 639-642. DOI: 10.1016/S0040-4039(00)94588-X  0.368
1989 Bringmann G, Jansen JR. Chiral economy with respect to rotational isomerism: Rational synthesis of hamatine and (optionally) ancistrocladine from joint helical precursors Heterocycles. 28: 137-142. DOI: 10.3987/Com-88-S62  0.38
1986 Bringmann G, Jansen JR. One pot preparation of 1,3-dimethyltetrahydroisoquinolines from their biosynthetic diketo precursors Heterocycles. 24: 2407-2410. DOI: 10.3987/R-1986-09-2407  0.396
1986 Bringmann G, Jansen JR, Rink HP. Regioselective and atropoisomeric-selective aryl coupling to give naphthyl isoquinoline alkaloids: The first total synthesis of (-)-ancistrocladine Angewandte Chemie - International Edition in English. 25: 913-915.  0.431
1984 Bringmann G, Jansen JR. A first and general route to naphthylisoquinoline alkaloids: the total synthesis of O-methyl-tetradehydro-triphyophylline Tetrahedron Letters. 25: 2537-2540. DOI: 10.1016/S0040-4039(01)81225-9  0.467
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