A cycloaddition product of a chiral maleimide: 4-{(3aS*,6aS*)-4,6-dioxo-1-phenyl-5-[(1R)-1-phenyl-ethyl]-1,3a,4,5,6,6a-hexa-hydro-pyrrolo[3,4-c]pyrazol-3-yl}phenyl acetate

Chris F Fronczek; Yaşar Dürüst; Muhammet Yildirim; Frank R Fronczek

doi:10.1107/S1600536809046790

A cycloaddition product of a chiral maleimide: 4-{(3aS,6aS)-4,6-dioxo-1-phenyl-5-[(1R)-1-phenyl-ethyl]-1,3a,4,5,6,6a-hexa-hydro-pyrrolo[3,4-c]pyrazol-3-yl}phenyl acetate

Acta Crystallogr Sect E Struct Rep Online. 2009 Nov 14;65(Pt 12):o3069. doi: 10.1107/S1600536809046790.

Authors

Chris F Fronczek, Yaşar Dürüst, Muhammet Yildirim, Frank R Fronczek

Abstract

In the title mol-ecule, C(27)H(23)N(3)O(4), the two central five-membered rings form a dihedral angle of 63.66 (4)°. The absolute configuration was determined by analysis of Bijvoet pairs based on resonant scattering of light atoms, yielding a Hooft parameter y = -0.10 (7).