Coumurrayin.-The title compound (I) is isolated from the hexane extract of the roots of Seseli Sibiricum and its structure is determined by X-ray analysis. -(RAJNIKANT; GUPTA, V. K.; SINGH, A.; LAL, M.; VARGHESE, B.; Acta Crystallogr., Sect. C: Cryst.
Synthesis of 3-Aroylimidazo[1,2-a]pyridines via CuCl 2 Catalyzed Tandem Dual Carbon-Nitrogen Bonding. -Crucial advantages of the presented approach are an economically attractive catalyst, ligand, and additive free conditions as well as ubiquitous air as an oxidant. -(KASWAN, P.; PERICHERLA, K.; RAJNIKANT; KUMAR*, A.; Tetrahedron 70 (2014) 45, 8539-8544, http://dx.
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Direct Catalytic Synthesis of Densely Substituted 3-Formylpyrroles from Imines and 1,4-Ketoaldehydes. -A straightforward synthesis of densely substituted 3-formylpyrroles in a modular fashion from 1,4-dicarbonyl compounds and aldimines under very mild conditions is developed. This one-pot cascade sequence involves chemoselective Mannich-cyclization-aerobic oxidation as formal [3 + 2] cycloaddition. -(KUMAR*, I.; MIR, N. A.; RAMARAJU, P.; SINGH, D.; GUPTA, V. K.; RAJNIKANT; RSC Adv. 4 (2014) 65, 34548-34551, http://dx.doi.org/10.1039/c4ra06581f ; Dep. Chem., Birla Inst. Technol. Sci., Pilani 333 031, India; Eng.) -C. Inoue
Highly Enantioselective [4 + 2] Annulation via Organocatalytic Mannich-Reductive Cyclization: One-Pot Synthesis of Functionalized Piperidines. -The practicability of the described method is illustrated by gram-scale application and through the synthesis of a functionalized (-)-anabasine derivative (IV*). -(KUMAR*, I.; RAMARAJU, P.; MIR, N. A.; SINGH, D.; GUPTA, V. K.; RAJNIKANT; Chem. Commun. (Cambridge) 49 (2013) 50, 5645-5647, http://dx.doi.org/10.1039/c3cc42431f ; Dep. Chem., Birla Inst. Technol. Sci., Pilani 333 031, India; Eng.) -M. Duhs 42-139
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