Palladium-Catalyzed Oxidative Acyloxylation/Carbocyclization of Allenynes.

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45

摘要:

Highly selective protocols for the carbocyclization/arylation of allenynes using arylboronic acids are reported. Arylated vinylallenes are obtained with the use of BF3Et2O as an additive, whereas addition of water leads to arylated trienes. These conditions provide the respective products with excellent selectivities (generally >97:3) for a range of boronic acids and different allenynes. It has been revealed that water plays a crucial role for the product distribution.

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DOI:

10.1002/anie.201208718

被引量:

191

年份:

2013

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2015
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