Ruthenium-catalyzed transformation of 3-benzyl but-1-ynyl ethers into 1,3-dienes and benzaldehyde via transfer hydrogen.
TpRuPPh(3)(CH(3)CN)(2)PF(6) catalyzed the transformation of various 3-benzyl but-1-ynyl ethers into dienes and benzaldehyde at a catalyst loading of 5 mol %. This process represents an atypical pattern of transfer hydrogenation. This catalytic reaction can be applied to various derivatives of 2-ethynyl tetrahydrofurans and pyrans to cleave their ether rings and gives diene and tethered aldehyde functionalities, respectively.
Yeh
Kuo-Liang
KL
Department of Chemistry, National Tsinh-Hua University, Hsinchu, Taiwan, ROC.
Liu
Bo
B
Lai
Yen-Ting
YT
Li
Chia-Wen
CW
Liu
Rai-Shung
RS