European Journal of Chemistry

Crystal structure of 2,4-dinitrophenyl 2,4,6-trimethylbenzenesulfonate

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Published: Jun 30, 2022
DOI: https://doi.org/10.5155/eurjchem.13.2.145-150.2279
Keywords:
Crystal, Sulfonate, Sulfonylation, Crystallization, X-ray diffraction, Synthetic methods
Section
Research Article
Issue
Vol. 13 No. 2 (2022): June 2022
Dates
Received 2022-04-06
Accepted 2022-04-27
Published 2022-06-30
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Brock Anton Stenfors
Department of Chemistry, Grand Valley State University, 1 Campus Drive, Allendale, MI 49401, USA
https://orcid.org/0000-0001-8760-5878
Felix Nyuangem Ngassa
Department of Chemistry, Grand Valley State University, 1 Campus Drive, Allendale, MI 49401, USA
https://orcid.org/0000-0001-8246-3639

Abstract

Arylsulfonates are a useful class of synthetic precursors, affording either their arylamine or arylsulfonamide counterparts upon amination via regioselective C–O/S–O bond cleavage. Herein, the synthesis of 2,4-dinitrophenyl 2,4,6-trimethylbenzenesulfonate is described, utilizing our previously developed synthetic methods, and crystallographic characterization. While the mechanism for nucleophilic substitution at the sulfonyl group remains largely unknown, experimental work within our group and in the literature lend credence to a mechanism analogous to its carbonyl counterpart. Characterization of the molecular structure of the title compound, C15H14N2O7S, at 173 K, features a sulfonate group with S=O bond lengths of 1.4198(19) and 1.4183(19) Å and a S–O bond length of 1.6387(18) Å. Viewing down the S–O bond reveals gauche oriented aromatic rings. Crystal data for C15H14N2O7S: Monoclinic, space group P21/c (no. 14), a = 6.8773(10) Å, b = 8.9070(14) Å, c = 25.557(4) Å, β = 93.0630(18)°, V = 1563.3(4) Å3, Z = 4, T = 173.15 K, μ(MoKα) = 0.251 mm-1, Dcalc = 1.557 g/cm3, 12259 reflections measured (3.192° ≤ 2Θ ≤ 50.682°), 2861 unique (Rint = 0.0493, Rsigma = 0.0419) which were used in all calculations. The final R1 was 0.0457 (I > 2σ(I)) and wR2 was 0.1306 (all data).


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Stenfors, B. A.; Ngassa, F. N. Crystal Structure of 2,4-Dinitrophenyl 2,4,6-Trimethylbenzenesulfonate. Eur. J. Chem. 2022, 13, 145-150.

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Supporting Agencies

National Science Foundation, Directorate for Mathematical and Physical Sciences (grant No. MRI CHE-1725699, grant No. MRI CHE-1919817), GVSU Chemistry Department’s Weldon Fund.
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