title: Rhodium-catalyzed enantioselective cyclizations of γ-alkynylaldehydes with acyl phosphonates: ligand- and substituent-controlled C-P or C-H bond cleavage.
abstract: It has been established that a cationic rhodium(I)/(R)-H(8)-BINAP or (R)-Segphos complex catalyzes two modes of enantioselective cyclizations of γ-alkynylaldehydes with acyl phosphonates via C-P or C-H bond cleavage. The ligands of the Rh(I) complexes and the substitutents of both γ-alkynylaldehydes and acyl phosphonates control these two different pathways.
authors.affiliation: Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan.
authors.forename: Kengo
authors.initials: K
authors.lastname: Masuda
authors.forename: Norifumi
authors.initials: N
authors.lastname: Sakiyama
authors.forename: Rie
authors.initials: R
authors.lastname: Tanaka
authors.forename: Keiichi
authors.initials: K
authors.lastname: Noguchi
authors.forename: Ken
authors.initials: K
authors.lastname: Tanaka