Crystal structure of 1′-ethyl­spiro[chroman-4,4′-imidazolidine]-2′,5′-dione: a hydantoine derivative

Acta Crystallographica Section E: Crystallographic Communications

Benaka Prasad, S.B.¹  Warad, I.²  Abdoh, M.³  Madaiah, M.⁴  Lokanath, N.K.⁵  Naveen, S.⁶ 

[1] Department of Chemistry, School of Engineering and Technology, Jain University, Bangalore 562 112, India;Department of Chemistry, Science College, An-Najah National University, PO Box 7, Nablus, Palestinian Territories;Department of Physics, Science College, An-Najah National University, PO Box 7, Nablus, Palestinian Territories;Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysuru 570 006, India;Department of Studies in Physics, University of Mysore, Manasagangotri, Mysuru 570 006, India;Institution of Excellence, University of Mysore, Manasagangotri, Mysuru 570 006, India

关键词: CRYSTAL STRUCTURE;    HYDANTOIN DERIVATIVES;    IMIDAZOLIDINE;    CHROMAN;    SPIRO;    HYDROGEN BONDING;    C-H...[PI] INTERACTIONS;   

DOI  :  10.1107/S2056989015016175

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The title compound, C13H13N2O3, a hydantoin derivative, crystallized with two mol­ecules (A and B) in an asymmetric unit. In mol­ecule A, the imidazolidine ring is twisted about the C—N bond involving the spiro C atom, while in mol­ecule B this ring is flat (r.m.s. deviation = 0.010 Å). The pyran rings in both mol­ecules have distorted half-chair conformations. The mean plane of the imidazolidine ring is inclined to the aromatic ring of the chroman unit by 79.71 (11)° in mol­ecule A and 82.83 (12)° in mol­ecule B. In the crystal, pairs of N—H⋯O hydrogen bonds link the individual mol­ecules to form A–A and B–B inversion dimers. The dimers are linked via N—H⋯O and C—H⋯O hydrogen bonds, forming sheets lying parallel to the bc plane, viz. (011). Within the sheets, the A and B mol­ecules are linked by C—H⋯π inter­actions.

【 授权许可】

CC BY