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The Synthesis and Molecular Structure of 2-(4-Methoxybenzyl)-4-nitro-2H-indazole
Institut für Radiopharmazie, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, D 01328 Dresden, Germany
Institut für Chemie, Anorganische Festkörperchemie, Albert-Einstein-Straße 3a, D-18059 Rostock, Germany
* Author to whom correspondence should be addressed.
Received: 23 December 2011; in revised form: 21 February 2012 / Accepted: 23 March 2012 / Published: 10 April 2012
Abstract: Two novel indazole derivatives protected with p-methoxybenzyl group were synthesized and characterized. The crystal and molecular structure of 2-(4-methoxybenzyl)-4-nitro-2H-indazole as one out of the two regioisomers is reported. The compound was obtained from a saturated petroleum ether/ethyl acetate mixture and crystallizes in the triclinic space group P`1. The unit cell parameters are: a = 6.8994(1) Å, b = 9.8052(2) Å, c = 11.1525(2) Å; α = 71.729(1)°, β = 79.436(1)°, γ = 74.349(1)° and V = 685.83(2) Å3. There are two independent molecules found in the asymmetric unit.
Keywords: indazoles; protecting group; p-methoxy benzyl; X-ray structure
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Ebert, K.; Köckerling, M.; Mamat, C. The Synthesis and Molecular Structure of 2-(4-Methoxybenzyl)-4-nitro-2H-indazole. Crystals 2012, 2, 176-181.
Ebert K, Köckerling M, Mamat C. The Synthesis and Molecular Structure of 2-(4-Methoxybenzyl)-4-nitro-2H-indazole. Crystals. 2012; 2(2):176-181.
Ebert, Kristin; Köckerling, Martin; Mamat, Constantin. 2012. "The Synthesis and Molecular Structure of 2-(4-Methoxybenzyl)-4-nitro-2H-indazole." Crystals 2, no. 2: 176-181.