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4-(Prop-2-yn-yl)-2H-1,4-benzo-thia-zin-3(4H)-one.

ABSTRACT: In the title compound, C11H9NOS, the six-membered heterocycle of the benzo-thia-zine fragment exhibits a screw-boat conformation. The benzene ring makes a dihedral angle of 79.4?(1)° with the mean plane through the prop-2-ynyl chain and the ring N atom. In the crystal, mol-ecules are linked by C-H?O inter-actions of the acetyl-enic C-H group towards the carbonyl O atom of a neighbouring mol-ecule, forming zigzag chains running along the b-axis direction.

SUBMITTER: Sebbar NK 

PROVIDER: S-EPMC4050998 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature

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4-(Prop-2-yn-yl)-2H-1,4-benzo-thia-zin-3(4H)-one.

Sebbar Nada Kheira NK   Zerzouf Abdelfettah A   Essassi El Mokhtar el M   Saadi Mohamed M   El Ammari Lahcen L  

Acta crystallographica. Section E, Structure reports online 20140510 Pt 6

In the title compound, C11H9NOS, the six-membered heterocycle of the benzo-thia-zine fragment exhibits a screw-boat conformation. The benzene ring makes a dihedral angle of 79.4 (1)° with the mean plane through the prop-2-ynyl chain and the ring N atom. In the crystal, mol-ecules are linked by C-H⋯O inter-actions of the acetyl-enic C-H group towards the carbonyl O atom of a neighbouring mol-ecule, forming zigzag chains running along the b-axis direction. ...[more]

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