Acta Crystallographica Section C

Crystal Structure Communications

Volume 69, Part 6 (June 2013)

organic compounds

Acta Cryst. (2013). C69, 638-641    [ doi:10.1107/S0108270113010706 ]

A comparison of 3,4,6a,7,10,10a-hexa­hydro-7,10-ep­oxy­pyrimido[2,1-a]isoindol-6(2H)-one and 2-(2-amino­eth­yl)-3a,4,7,7a-tetra­hydro-1H-4,7-ep­oxy­iso­indole-1,3(2H)-dione: structural and reactivity differences of two homologous tricyclic imides

L. A. Mitchell, J. M. Stanley, L. Espinosa De Hoyos and B. J. Holliday

Abstract: The crystal structures of 3,4,6a,7,10,10a-hexa­hydro-7,10-ep­oxy­pyrimido[2,1-a]isoindol-6(2H)-one, C11H12N2O2, and 2-(2-amino­eth­yl)-3a,4,7,7a-tetra­hydro-1H-4,7-ep­oxy­iso­indole-1,3(2H)-dione, C10H12N2O3, two tricyclic imides, show one and two mol­ecules in the asymmetric unit, respectively. Inter­molecular hydrogen-bonding inter­actions are observed in both compounds.

Formula: C11H12N2O2 and C10H12N2O3

hkldisplay filedownload file

Structure factor file (CIF format) (105.6 kbytes)
[ doi:10.1107/S0108270113010706/sf3191IIsup2.hkl ]
Contains datablock II

hkldisplay filedownload file

Structure factor file (CIF format) (213.1 kbytes)
[ doi:10.1107/S0108270113010706/sf3191IVsup3.hkl ]
Contains datablock IV


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