Crystal structure of ethyl 5′′-fluoro-2′′,3-dioxo-6′,7′,8′,8a'-tetra­hydro-2′H,3H,5′H-di­spiro­[benzo[b]thio­phene-2,1′-indol­izine-3′,3′′-indoline]-2′-carboxyl­ate

Acta Crystallographica Section E: Crystallographic Communications

Suresh, M.¹  Raghunathan, R.¹  Govindaraj, J.²  SubbiahPandi, A.³  Raja, R.³ 

[1] Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai 602 025, India;Department of Physics, Pachaiyappa's College for Men, Kanchipuram 631 501, India;Department of Physics, Presidency College (Autonomous), Chennai 600 005, India

关键词: CRYSTAL STRUCTURE;    DISPIRO;    BENZOTHIOPHENE;    INDOLIZINE;    INDOLINE;    F...F INTERACTIONS;    HYDROGEN BONDS;   

DOI  :  10.1107/S2056989015002121

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

In the title compound, C25H23FN2O4S, the fused piperidine ring of the octa­hydro­indolizine ring system adopts a chair conformation and the five-membered ring has a twisted conformation on the N—C(spiro) bond. The mean planes of the benzo­thio­phene and indoline ring systems are inclined to the mean plane of the pyrrolidine ring by 83.1 (1) and 84.9 (1)°, respectively, and to each other by 29.37 (17)°. In the crystal, mol­ecules are linked via pairs of N—H⋯O hydrogen bonds, forming inversion dimers with an R22(8) ring motif. The dimers are linked via C—H⋯O hydrogen bonds, forming slabs lying parallel to (100). The packing between the slabs features a short[2.734 (2) Å] F⋯F contact.

【 授权许可】

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