"tert-Amino Effect" in Heterocyclic Synthesis. Formation of N-Heterocycles by Ring-Closure Reactions of Substituted 2-Vinyl-N,N-dialkylanilines

Article abstract of DOI:10.1021/jo00176a011

2-Vinyl-N,N-dialkylanilines react thermally in polar solvents and/or in the presence of Lewis acids via <1,5> or <1,6> hydrogen transfer followed by C-C bond formation to give heterotricyclic compounds.The reaction depends on the type of N,N-dialkylamino