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Butyl 4-(4-methyl­benzene­sulfonamido)­benzoate

By Ghulam Mustafa, Mehmet Akkurt, Yılmaz Dağdemir and Islam Ullah Khan

Abstract

In the title compound, C18H21NO4S, the aromatic rings are almost normal to each other, with a dihedral angle of 89.27 (18)°. The mol­ecular conformation is stabilized by an intra­molecular C—H⋯O inter­action, which generates an S(6) motif. In the crystal, N—H⋯O and C—H⋯O hydrogen bonds lead to the formation of chains propagating along [010]. Neighbouring chains are linked via a C—H⋯π inter­action. The –CH2CH2CH3 atoms of the butyl group are disordered over two sets of sites, with a refined site-occupancy ratio of 0.536 (16):0.464 (16)

Topics: Organic Papers
Publisher: International Union of Crystallography
OAI identifier: oai:pubmedcentral.nih.gov:3344642
Provided by: PubMed Central
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    1. (1987). 1, the two aromatic rings (C2—C7) and (C8—C13) are almost normal to each other, with a dihedral angle of 89.27 (18)°. The S atom has a distorted tetrahedral coordination geometry
    2. (2009). Acta Cryst. D65, 148–155. organic compounds Acta Cryst.
    3. APEX2 and SAINT.
    4. (2012). Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) xy zU iso*/Ueq Occ.
    5. (1995). The molecular conformation of the title compound is stabilized by an intramolecular C—H···O interaction, generating an S(6) motif (Table 1; Bernstein

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