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Rhodium-catalyzed addition of aryl- and alkenylsilanediols to aldehydes
被引:0
|作者:
Fujii, T
[1
]
Koike, T
[1
]
Mori, A
[1
]
Osakada, K
[1
]
机构:
[1] Tokyo Inst Technol, Chem Resources Lab, Yokohama, Kanagawa 2268503, Japan
来源:
关键词:
silanediol;
rhodium complex;
arylation;
alkenylation;
aldehyde;
D O I:
暂无
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Arylation and alkenylation of aromatic aldehydes with silanediols is shown to proceed by use of a catalytic amount of rhodium complex. Treatment of ethyl(4-methoxyphenyl)silanediol with benzaldehyde in the presence of 3 mol% of [Rh(OH)(cod)](2) affords 4-methoxyphenyl(phenyl)methanol in 59% yield after stirring at 70 degreesC for 24 hours. On the other hand, diarylketone was also obtained at elevated temperature via beta-hydride elimination from intermediary rhodium alkoxide.
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页码:298 / 300
页数:3
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