Reaction of Oxocyclobutenyl Palladium(II) Complex with Terminal Alkynes or Organozincs Affording Differently 2,3-Disubstituted Cyclobutenones
作者:Hidekazu Azami、Masaki Miyashita、Daichi Aoki、Hidemi Andou、Atsuki Matsumura、Masakazu Iwasaki
DOI:10.1246/cl.170497
日期:2017.9.5
The reaction of the oxocyclobutenyl palladium(II) complex 2 with terminal alkyne 3 in the presence of CuI or with organozincs yielded differently 2,3-disubstituted cyclobutenones 4 or 5 via the stoichiometric Sonogashira- or Negishi-type reactions, respectively. In addition, the possibility of the synthesis of cyclobutenones 4 from 1, CO, and 3 catalyzed by the Pd complex was also demonstrated.
氧代环丁烯基钯 (II) 配合物 2 与末端炔烃 3 在 CuI 存在下或与有机锌的反应分别通过化学计量的 Sonogashira 或 Negishi 型反应产生不同的 2,3-二取代环丁烯酮 4 或 5。此外,还证明了由 Pd 配合物催化的 1、CO 和 3 合成环丁烯酮 4 的可能性。