tert-Butyl 5-{2-[2-(N-ethynyl-4-methyl-benzene-sulfonamido)-phen-yl]ethyn-yl}furan-2-carboxyl-ate

The crystal structure of an o,N-dialkynyl-tosyl-aniline, C(26)H(23)NO(5)S, is presented. Two essentially planar and nearly parallel branches are connected to the aniline unit and the angle between the alkynes amounts to 26 (4)°. Weak intra-molecular aromatic π-π stacking occurs.