Key indicatorsSingle-crystal X-ray study T = 273 K Mean '(C±C) = 0.003 A Ê R factor = 0.043 wR factor = 0.116 Data-to-parameter ratio = 11.2 For details of how these key indicators were automatically derived from the article, see Figure 1 View of the molecule of (I), showing the atom-labelling scheme. Displacement ellipsoids are drawn at the 50% probability level.
In the title compound, C11H10N2OS, the dihedral angle between the thiophene and pyridine rings is 77.79 (8)°. In the crystal, inversion dimers linked by pairs of N—H...N hydrogen bonds generate R
2
2(10) loops. The dimers are reinforced by pairs of C—H...N interactions and C—H...O interactions link the dimers into [010] chains.
An environmentally benign method has been developed for the Friedel-Crafts alkylation of indoles with nitroalkenes using ammonium niobium oxalate (ANO) as a recyclable catalyst. The reactions were carried out under...
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