Cheng D, Meng X, Sheng Z, Wang S, Duan Y, Li Z. Crystal structures of (
E)-3-(furan-2-yl)-2-phenyl-
N-tosylacrylamide and (
E)-3-phenyl-2-(
m-tolyl)-
N-tosylacrylamide.
Acta Crystallogr E Crystallogr Commun 2016;
72:797-800. [PMID:
27308045 PMCID:
PMC4908551 DOI:
10.1107/s2056989016007611]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 05/06/2016] [Indexed: 12/05/2022]
Abstract
In the title N-tosylacrylamide compounds, (I) and (II), the conformation about the C=C bond is E. In (I), the furan, phenyl and 4-methylbenzene rings are inclined to the acrylamide mean plane [–NH—C(= O)—C=C–] by 26.47 (11), 69.01 (8) and 82.49 (9)°, respectively. In (II), the phenyl, and 3-methyl and 4-methylbenzene rings are inclined to the acrylamide mean plane by 11.61 (10), 78.44 (10) and 78.24 (10)°, respectively. In the crystals of both compounds, molecules are linked by pairs of N—H⋯O hydrogen bonds, forming inversion dimers with (8) ring motifs.
In the title N-tosylacrylamide compounds, C20H17NO4S, (I), and C23H21NO3S, (II), the conformation about the C=C bond is E. The acrylamide groups, [–NH—C(=O)—C=C–], are almost planar, with the N—C—C=C torsion angle being −170.18 (14)° in (I) and −168.01 (17)° in (II). In (I), the furan, phenyl and 4-methylbenzene rings are inclined to the acrylamide mean plane by 26.47 (11), 69.01 (8) and 82.49 (9)°, respectively. In (II), the phenyl, 3-methylbenzene and 4-methylbenzene rings are inclined to the acrylamide mean plane by 11.61 (10), 78.44 (10) and 78.24 (10)°, respectively. There is an intramolecular C—H⋯π interaction present in compound (II). In the crystals of both compounds, molecules are linked by pairs of N—H⋯O hydrogen bonds, forming inversion dimers with an R22(8) ring motif. In (I), the dimers are reinforced by C—H⋯O hydrogen bonds and linked by C—H⋯π interactions, forming chains along [011]. In the crystal of (II), the dimers are linked via C—H⋯O hydrogen bonds, forming chains along [100]. The chains are further linked by C—H⋯π interactions, forming layers parallel to (010).
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