(11aS)-1,5,11,11a-Tetra-hydro-1-benzo-thieno[3,2-f]indolizin-3(2H)-one.
The absolute configuration of the title compound, C14H13NOS, was assigned from the synthesis and confirmed by the structure determination. There are two independent mol-ecules in the asymmetric unit. The central six-membered ring of the indolizine moiety adopts an envelope conformation, with the greatest deviations from the mean planes being 0.569 (3) and 0.561 (3) Å for the indolizine bridgehead C atoms of the two mol-ecules. The benzothieno ring attached to the indolizine ring system is planar to within 0.015 (3) Å in both mol-ecules. In the crystal, weak C-H⋯O and C-H⋯π inter-actions lead to the formation of a three-dimensional framework structure.
Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, Slovak Technical University, Radlinského 9, SK-812 37 Bratislava, Slovak Republic.
Viktor
V
Vrábel
Institute of Mathematics and Physics, Faculty of Mechanical Engineering, Slovak University of Technologyy, Námestie slobody 17, SK-812 31 Bratislava, Slovak Republic.
Július
J
Sivý
Institute of Organic Chemistry, Catalysis and Petrochemistry, Faculty of Chemical and Food Technology, Slovak Technical University, Radlinského 9, SK-812 37 Bratislava, Slovak Republic.
Peter
P
Safář
Institute of Physical Chemistry and Chemical Physics, Slovak University of Technology, Radlinského 9, SK-812 37 Bratislava, Slovak Republic.
Jozef
J
Kožíšek