Ruthenium-Catalyzed Transformation of 3-Benzyl But-1-ynyl Ethers into 1,3-Dienes and Benzaldehyde via Transfer Hydrogen
作者:Kuo-Liang Yeh、Bo Liu、Yen-Ting Lai、Chia-Wen Li、Rai-Shung Liu
DOI:10.1021/jo049514x
日期:2004.7.1
TpRuPPh3(CH3CN)2PF6 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
Palladium-Catalyzed Ring-Closing Reaction via C–N Bond Metathesis for Rapid Construction of Saturated <i>N</i>-Heterocycles
作者:Bangkui Yu、Suchen Zou、Hongchi Liu、Hanmin Huang
DOI:10.1021/jacs.0c10615
日期:2020.10.28
The ring-closingreactions based on chemical bond metathesis enable the efficient construction of a wide variety of cyclic systems which receive broad interest from medicinal and organic communities. However, the analogous reaction with C-N bond metathesis as a strategic fundamental step remains an unanswered challenge. Herein, we report the design of a new fundamental metallic C-N bond metathesis reaction
A New Ruthenium-Catalyzed Hydrogen-Transfer Reaction: Transformation of 3-Benzyl But-1-ynyl Ethers into 1,3-Dienes and Benzaldehyde
作者:Kuo-Liang Yeh、Bo Liu、Ching-Yu Lo、Heh-Lung Huang、Rai-Shung Liu
DOI:10.1021/ja012623y
日期:2002.6.1
We report a ruthenium-catalyzedreaction for various 3-benzyl but-1-ynyl ethers with suitable functionalities. Treatment of these substrates with TpRu(PPh3)(CH3CN)2PF6 (8.0 mol %) catalyst in 1,2-dichloroethane (80 degrees C, 12 h) afforded functionalized 1,3-dienes and benzyl aldehyde in good yields. This process is considered to be a tandem dealkoxylation and transfer hydrogenation. Deuterium-labeling