- Singh, O. V.; Han, H. Iridium(I)-catalyzed regio- and enantioselective allylic amidation. Accepted for publication in Tetrahedron Letters.
- Singh, O. V.; Han, H. Iridium(I)-catalyzed regio- and enantioselective decarboxylative allylic amidation of substituted allyl benzyl imidodicarbonates. Journal of American Chemical Society 2007, 129, 774-775.
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Singh, S.; Das, G.; Singh, O. V.; Han, H. Development of more potent 4-dimethylaminopyridine analogues. Organic. Letters 2007, 9, 401-404.
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Singh, S.; Das, G.; Singh, O. V.; Han, H. Conformationally restricted 4-dimethylaminopyridine (DMAP) analogs: Synthesis and evaluation of catalytic effectiveness. Tetrahedron Letters 2007, 48, 1983-1986.
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Singh, O. V.; Han, H. Stereoselective synthesis of trans-olefins by the copper-mediated SN2' reaction of vinyl oxazines with Grignard reagents. Asymmetric synthesis of D-threo-sphingosines. Tetrahedron Letters 2007, 48, 2345-2348.
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Chikkanna, D.; Singh, O. V.; Kong, S. B.; Han, H. A General Asymmetric Route for the Synthesis of the Alexine and Australine Family of Pyrrolizidine Alkaloids. The First Asymmetric Synthesis of 1,2-diepi-Alexine and 1,2,7-triepi-Australine. Tetrahedron Letters 2005, 46, 8865-8868.
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Singh, O. V.; Han, H. Tandem Overman Rearrangement and Intramolecular Amidomercuration Reactions. Stereocontrolled Synthesis of cis- and trans-2,6-Dialkylpiperidines. Organic Letters 2004, 6, 3067-3070.
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Singh, O. V.; Kampf, D. J.; Han, H. Oxazine Formation by MsCl/Et3N as a Convenient Tool for the Stereochemical Interconversion of the Hydroxyl Group in N-Acetyl 1,3-aminoalcohols. Asymmetric Synthesis of N-Acetyl L-xylo- and L-arabino-phytosphingosines. Tetrahedron Letters 2004, 45, 7239-7242.
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Chikkanna, D.; Han, H. Hg(II) Reagent-controlled Stereoselective Synthesis of 2,5-cis- and 2,5-trans-Polyhydroxylated Pyrrolidines. Synlett 2004, 2311-2314.
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Singh, S.; Han, H. Stereodivergent Total Asymmetric Synthesis of Polyhydroxylated Pyrrolidines via Tandem Allylic Epoxidation and Intramolecular Cyclization Reactions. Tetrahedron Letters 2004, 45, 6349-6352.
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Singh, O. V.; Han, H. A General Methodology for the Asymmetric Synthesis of 1-Deoxyiminosugars. em>Tetrahedron Letters 2003, 44, 2387-2391.
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Han, H.; Yang, H. A Complete Asymmetric Synthesis of Polyhydroxypiperidines. Tetrahedron Letters 2003, 44, 1567-1569.
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Singh, S.; Chikkanna, D.; Singh, O.; Han, H. A Highly Efficient and Stereoselective Synthesis of Polyhydroxylated Pyrrolidines via Regioselective Asymmetric Aminohydroxylation (RAA) and Intramolecular Amidomercuration Reactions. Synlett 2003, 1279-1282.
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Singh, O. V.; Han, H. A Concise and General Methodology for the Complete Asymmetric Synthesis of the Orthogonally Protected 2-Amino-1,3,4-butanetriols (ABRs). Tetrahedron Letters 2003, 44, 5289-5292.
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