Activation of a Carbon-Carbon Bond in Internal Alkynes: Vinylidene Rearrangement of Disubstituted Alkynes at an Ir Complex

作者：Kuwabara Takuya; Takamori Shuhei; Kishi Satoshi; Watanabe Takahiro; Ikeda Yousuke; Kodama Shintaro; Minami Yasunori; Hiyama Tamejiro; Ishii Youichi^*

来源：Synlett, 2018, 29(6): 727-730.

DOI：10.1055/s-0036-1591511

• rearrangement
• internal alkyne
• reaction mechanism

Reactions of [Cp*Ir(PPh3)Cl-2] with various internal acyl-alkynes in the presence of NaBAr4F resulted in the selective formation of iridacycles via vinylidene rearrangement. C-13-labeling experiments revealed that the acyl group selectively migrates to the other acetylenic carbon atom. This trend is the same as that in the vinylidene rearrangement of internal alkynes at a group 8 metal center.

• 出版日期2018-4