The (1RS,2RS,7RS,8RS)- and (1RS,2SR,7SR,8RS)-diastereoisomers of 8,9,11,12-tetrachloro-N-ethyltricyclo[6.2.2.0²,⁷]dodeca-9,11-diene-1,10-dicarboximide

Two racemic diastereoisomers, C₁₆H₁₅Cl₄NO₂, of the title 1,4-photoadduct of N-ethyltetrachlorophthalimide with cyclohexene have been isolated and their stereostructures determined