title: Alkyne as a spectator ligand for the nickel-catalyzed multicomponent connection reaction of diphenylzinc, 1,3-butadiene, aldehydes, and amines.
abstract: Under nickel catalysis, in the presence of 3-hexyne, the aldimines of aromatic amines react with Ph2Zn and one molecule of butadiene to provide 1 exclusively, while the aldimines of aliphatic amines react with Ph2Zn and two molecules of butadiene to provide 2 exclusively, where 3-hexyne serves as a spectator ligand controlling the selective formation of 1 and 2.
authors: Department of Applied Chemistry, Faculty of Engineering, and Graduate School of Science and Technology, Nagasaki University, 1-14 Bunkyo, Nagasaki, Japan.
authors: Masanari
authors: M
authors: Kimura
authors: Yasushi
authors: Y
authors: Tatsuyama
authors: Keisuke
authors: K
authors: Kojima
authors: Yoshinao
authors: Y
authors: Tamaru