Key points are not available for this paper at this time.
Abstract Treatment of nonconjugated olefins such as cis- and trans-2-butenes, cis-2-octene, and cyclohexene with MoCl5 in CCl4 gave vic-dichloroalkanes whose cis-isomer was formed predominantly, the ratio of cis- to trans-addition being 4.9–12.1, together with monochloroalkanes. Preferential formation of exo-cis-dichloride was observed in the case of norbornene and norbornadiene. Bromochlorination and chloroiodination of olefins, and aromatic bromination and iodination were carried out with mixtures of MoCl5 and halogens. The reaction scheme for chlorination is discussed.
Uemura et al. (Sun,) studied this question.