Research Article: Ethyl 4-{[3-(adamantan-1-yl)-4-phenyl-5-sulfanyl­idene-4,5-dihydro-1H-1,2,4-triazol-1-yl]meth­yl}piperazine-1-carboxyl­ate

Date Published: February 01, 2012

Publisher: International Union of Crystallography

Author(s): Ebtehal S. Al-Abdullah, Hanadi H. Asiri, Ali A. El-Emam, Seik Weng Ng.


The title mol­ecule, C26H35N5O2S, displays a chair-shaped piperazine ring, as well as a planar triazole ring whose phenyl substituent is perpendicular to the mean plane of the five-membered ring [dihedral angle = 90.00 (13)°]. The methyl­ene substituent on the piperazine ring occupies an equatorial site. Weak inter­molecular C—H⋯O hydrogen bonding is present in the crystal structure. The crystal studied was a non-merohedral twin, with a 33.9 (3)% minor component.

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For the synthesis and application of the title compound, see: El-Emam & Ibrahim (1991 ▶). For the separation of non-morohedrally twinned diffraction data, see: Spek (2009 ▶).