STEREOCHEMISTRY OF BIS-(DICHLOROCYCLOPROPANATION) AND -(EPOXIDATION) OF 1,4-DIARYLBUTADIENES

Article abstract of DOI:10.1016/0040-4020(84)85121-2

Dichlorocyclopropanation as well as epoxidation of the 1,4-diarylbutadienes 1-4 to give the mon- and/or bis-adducts according to several methods were studied.Dichlorocyclopropanation is more affected than epoxidation by sterical hindrance of large substituents as 2,6-dichlorophenyl.The bis-adducts are formed preferably as meso- (or threo-) isomers.