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The crystal structure of 1,7,8,9-tetrachloro-4-benzyl-10,10-dimethoxy-4-azatricyclo-(5,2,1,02,6)dec-8-ene-3,5-dione (C18H15Cl4NO4, Mr=451.11) has been determined by single-crystal X-ray diffraction analysis. The crystal belongs to the monoclinic system, space group P21 /c with a=18.6488(2), b=13.06430(10), c=16.1086(2) , β=92.9870(10)°, V=3919.26(7) 3 , Z=8, D c=1.529 g/cm 3 , μ=5.711 mm -1 , F(000)=1840, the final R=0.0599 and wR=0.1664 for 5645 observed reflections. The title compound is composed of a polycyclic fused pyrrolidine ring system. Three symmetric fused five-membered-ring structures were formed by the Diels-Alder reaction between N-benzylmaleimide and 5,5-dimethoxy-1,2,3,4-tetrachlorocydopentadiene.
The crystal structure of 1,7,8,9-tetrachloro-4-benzyl-10,10-dimethoxy-4-azatricyclo- (5,2,1,02,6) dec-8- ene-3,5-dione (C18H15Cl4NO4, Mr = 451.11) has been determined by single-crystal X-ray diffraction analysis. The crystal belongs to the monoclinic system, space group P21 / c with a = 18.6488 (2), b = 13.06430 (10), c = 16.1086 β, β = 92.9870 (10) °, V = 3919.26 73, Z = 8, D c = 1.529 g / cm 3, μ = 5.711 mm -1, F (000) = 1840, the final R = 0.0599 and wR = 0.1664 for 5645 observed reflections. The title compound is composed of a polycyclic fused pyrrolidine ring system. Three symmetric fused five-membered-ring structures were formed by the Diels-Alder reaction between N-benzylmaleimide and 5 , 5-dimethoxy-1,2,3,4-tetrachlorocydopentadiene.