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Updated: May 7, 2026

Modification and Functionalization of the Guanidine Group by Tailor-made Precursors
Published on: April 27, 2017
3-{[(Di-benzyl-carbamo-thio-yl)amino]-carbon-yl}benzamide
N Selvakumaran1, R Karvembu, Seik Weng Ng
1Department of Chemistry, National Institute of Technology, Tiruchirappalli 620 015, India.
Abstract:
Two independent mol-ecules with quite similar conformations, A and B, comprise the asymmetric unit of the title compound, C23H21N3O2S. The terminal amide substituent is coplanar with the attached benzene ring [the O-C-C-C torsion angles are 174.0 (2) (A) and 6.3 (3)° (B)]. In the same way, the central amide group [C-C-C-O = 7.8 (3) (A) and 11.5 (3)° (B)] is approximately coplanar with the ring to which it is attached. A major twist is noted between the amide and adjacent thio-amide residues [C-N-C-S = -109.29 (19) (A) and -112.29 (19)° (B)]. In the crystal, supra-molecular chains along [100] are formed by N-H⋯O and N-H⋯S hydrogen bonding. These are connected into a three-dimensional architecture by C-H⋯π and π-π inter-actions [inter-centroid distance = 3.9157 (12) Å].
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