Rhodium-catalyzed hydroaminomethylation of various vinyl arenes with anilines has been accomplished using water as an environmentally benign reaction media. This aqueous reaction is facilitated by the water-soluble diphosphine ligands derived from bis(2-(diphenylphosphaneyl)ethyl)amides. The methodology demonstrated a broad scope of substrates and accessed the N-(2-phenylpropyl)anilines in good yields
Synthesis of functional chelating diphosphines containing the bis[2-(diphenylphosphino)ethyl]amino moiety and the use of these materials in the preparation of water-soluble diphosphine complexes of transition metals
作者:Ralph G. Nuzzo、Sharon L. Haynie、Michael E. Wilson、George M. Whitesides