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Johannes Van Tonder
Johannes Van Tonder
Quality Assurance Manager at PET Labs Pharmaceuticals
Verified email at petlabs.co.za
Title
Cited by
Cited by
Year
Preparation of phenolic compounds through catalyst-free ipso-hydroxylation of arylboronic acids
M Gohain, M du Plessis, JH van Tonder, BCB Bezuidenhoudt
Tetrahedron Letters 55 (13), 2082-2084, 2014
452014
Synthesis of quinoline based heterocyclic compounds for blue lighting application
V Kumar, M Gohain, JH Van Tonder, S Ponra, BCB Bezuindenhoudt, ...
Optical Materials 50, 275-281, 2015
362015
Bi (OTf) 3-catalyzed solvent-free synthesis of pyrano [3, 2-c] coumarins through a tandem addition/annulation reaction between chalcones and 4-hydroxycoumarins
M Gohain, JH van Tonder, BCB Bezuidenhoudt
Tetrahedron Letters 54 (29), 3773-3776, 2013
302013
Nano CuFe 2 O 4: an efficient, magnetically separable catalyst for transesterification of β-ketoesters
M Gohain, V Kumar, JH van Tonder, HC Swart, OM Ntwaeaborwa, ...
RSC Advances 5 (24), 18972-18976, 2015
282015
Al (OTf) 3-Catalyzed Preparation of 4-Hydroxy-3-propargylic Coumarins and Subsequent Regioselective Cyclization towards Furo-or Pyrano [3, 2-c] coumarins
S Ponra, M Gohain, JH van Tonder, BCB Bezuidenhoudt
Synlett 26 (6), 745-750, 2015
252015
gem-Bishydroperoxides
JH van Tonder
Synlett 25 (11), 1629-1630, 2014
162014
Al (OTf) 3-catalyzed one-pot synthesis of pyrrolo [3, 2-d] pyrimidinedione derivatives
S Ponra, M Gohain, R Donka, JH van Tonder, BCB Bezuidenhoudt
Tetrahedron letters 59 (30), 2909-2912, 2018
92018
Synthesis of yellow emitting bis-pyrimidine based purely organic phosphors
V Kumar, M Gohain, V Kumar, JH Van Tonder, BCB Bezuidenhoudt, ...
Journal of Luminescence 149, 61-68, 2014
82014
Regioselective Hydrogenation of α, β-Unsaturated Ketones over Wilkinson’s Catalyst
JH van Tonder, C Marais, DJ Cole-Hamilton, BCB Bezuidenhoudt
Synthesis 2010 (03), 421-424, 2010
52010
Tricarbonyl (η6-flavone) chromium (0)
JH Van Tonder, BCB Bezuidenhoudt, JM Janse van Rensburg
Acta Crystallographica Section E: Structure Reports Online 65 (11), m1346-m1346, 2009
42009
Tricarbonyl (n6-4', 7-dimethoxyisoflavone) chromium (0)
JH Van Tonder, BCB Bezuidenhoudt, JM Janse van Rensburg
Acta Crystallographica Section E: Structure Reports Online 65 (11), m1343-m1343, 2009
42009
Studies Directed at the Stereoselective Synthesis of Flavonoids Through the Hydrogenation of Prochiral Precursors
JH Van Tonder
University of the Free State, 2008
32008
4, 5-Bis (2, 4-di-tert-butylphenoxy) phthalonitrile
JH van Tonder, TJ Muller, BCB Bezuidenhoudt
Acta Crystallographica Section E: Structure Reports Online 67 (3), o705-o706, 2011
22011
2', 3, 4, 4', 5-Pentamethoxychalcone
JH van Tonder, TJ Muller, BCB Bezuidenhoudt
Acta Crystallographica Section E: Structure Reports Online 66 (11), o2889-o2890, 2010
22010
2', 3, 4, 4'-Tetramethoxychalcone
JH van Tonder, TJ Muller, BCB Bezuidenhoudt
Acta Crystallographica Section E: Structure Reports Online 66 (7), o1798-o1799, 2010
22010
Crystal structure of 2, 3-dicyano-1, 4-phenylene bis (trifluoromethanesulfonate), C10H2F6N2O6S2
JH van Tonder, N Loganathan, M Gohain, BCB Bezuidenhoudt
Zeitschrift für Kristallographie-New Crystal Structures 229 (4), 357-358, 2014
12014
Racemic tricarbonyl [(4a, 5, 6, 7, 8, 8a-η)-2-phenyl-3, 4-dihydro-2H-1-benzopyran] chromium (0)
JH van Tonder, BCB Bezuidenhoudt, JM Janse van Rensburg
Acta Crystallographica Section E: Structure Reports Online 66 (9), m1086-m1086, 2010
12010
Racemic tricarbonyl (η6-7-methoxyflavan) chromium (0)
JH van Tonder, BCB Bezuidenhoudt, JM Janse van Rensburg
Acta Crystallographica Section E: Structure Reports Online 66 (8), m907-m908, 2010
12010
Synthesis and Epoxidation of Flav-3-enes as Methodology for the Biomimetic Preparation of Flavan-3, 4-diols
J van Jaarsveldt, C Marais, JH van Tonder
Synthesis, 2023
2023
The synthesis of symmetrical peripheral and non-peripheral octa-substituted metal-free phthalocyanines: simpler, better, faster, cheaper
JH van Tonder, C Marais, BCB Bezuidenhoudt
ARKIVOC 7, S1-S65, 2023
2023
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