title: Synthesis and catalytic activities of porphyrin-based PCP pincer complexes.
abstract: 2,18-Bis(diphenylphosphino)porphyrins undergo peripheral cyclometalation with group 10 transition-metal salts to afford the corresponding porphyrin-based PCP pincer complexes. The porphyrinic plane and the PCP-pincer unit are apparently coplanar, with small strain. The catalytic activities of the porphyrin-based pincer complexes at the periphery were investigated in the allylation of benzaldehyde with allylstannane and in the 1,4-reduction of chalcone to discover the electronic interplay between the inner metal and the outer metal in catalysis.
authors: Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502 (Japan).
authors: Keisuke
authors: K
authors: Fujimoto
authors: Tomoki
authors: T
authors: Yoneda
authors: Hideki
authors: H
authors: Yorimitsu
authors: Atsuhiro
authors: A
authors: Osuka
keywords: ligand design; metalation; porphyrinoid; reaction mechanisms; transition metals