Platinum-Catalyzed One-Pot Alkenylation of Aldehydes Using Alkynes and Triethylsilane: Dual Catalysis by Platinum(II) Chloride
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- 作者：Hidenori Kinoshita ; Ryousuke Uemura ; Daiki Fukuda ; Katsukiyo Miura
- 刊名：Organic Letters
- 出版年：2013
- 出版时间：November 1, 2013
- 年：2013
- 卷：15
- 期：21
- 页码：5538-5541
- 全文大小：183K
- 年卷期：v.15,no.21(November 1, 2013)
- ISSN：1523-7052
文摘
The PtCl2-catalyzed hydrosilylation of terminal alkynes with triethylsilane and subsequent alkenylation of aldehydes with the resultant (E)-alkenylsilanes in a one-pot manner are described. By adding p-benzoquinone and LiI, the latter alkenylation step proceeds smoothly to give allyl silyl ethers in moderate to high yields. This one-pot alkenylation is tolerant to a reasonable range of functional groups. PtCl2 plays a dual role as hydrosilylation and alkenylation catalysts.