Abstract
In the title compound, C14H11BrN2O3S, the 2,3-dihydrothiophene ring is almost planar [maximum deviation = 0.006 (1) Å]. The pyran ring is in an envelope conformation [puckering parameters Q = 0.115 (2) Å, θ = 77.5 (10), ϕ = 172.9 (10)°]. The pyran and phenyl rings are approximately perpendicular, making a dihedral angle of −76.4 (2)°. The crystal packing is stabilized by intermolecular N—H⋯O hydrogen bonds, with the sulfone O atoms acting as acceptors.
Highlights
221116, People’s Republic of China, and, Key Laboratory of Biotechnology for Medicinal Plants, Xuzhou Normal University, Xuzhou 221116, People’s Republic of
H atoms treated by a mixture of independent and constrained refinement max = 0.43 e Å3
The pyran ring is in an envelope conformation
Summary
5-Amino-7-(4-bromophenyl)-3,7-dihydro-2H-thieno[3,2-b]pyran-6-carbonitrile 1,1-dioxide 221116, People’s Republic of China, and, Key Laboratory of Biotechnology for Medicinal Plants, Xuzhou Normal University, Xuzhou 221116, People’s Republic of R factor = 0.036; wR factor = 0.088; data-to-parameter ratio = 17.4.
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