Multicomponent 1,3-Bifunctionalization of Donor-Acceptor Cyclopropanes with Arenes and Nitrosoarenes.

AlBr3-mediated multicomponent 1,3-bifunctionalization of donor-acceptor cyclopropanes using arenes and nitrosoarenes as coupling partners is presented. In the cascade, a C-C, a C-N, and a C-Br bond is formed. Reactions are easy to conduct and proceed under mild conditions. The γ,γ-disubstituted N-arylated α-amino esters obtained as products are readily further chemically modified rendering the method valuable.