A full account of our anionic polycyclization approach to accesshighlyfunctionalizedtricycles related to quassinoids and terpenoids from several optically active bicyclic enone systems and Nazarov reagents is presented. (+)-Carvone is the only chiral source used to fix the entire stereochemistry of all of the tricycles, and the stereochemical outcome of this process was unambiguously determined
In the presence of aluminum halide, benzeneseleninyl chloride is an efficient regioselective halogenating reagent for activated aromatics such as toluene, phenol, anisole, phenetole, diphenyl ether, and N,N-dimethylaniline. Benzene and chlorobenzene are not halogenated under similar conditions.