Hetero diacylation of 1,1-diborylalkanes: Practical synthesis of 1,3-diketones
Chinese Chemical Letters(2020)
摘要
An efficient protocol for the synthesis of asymmetric 1,3-diketones was reported through diacylation of 1,1-diborylalkanes using two different acyl sources. In this transformation, an enolate boron species was initially formed by introducing an acyl group, then it was trapped by another acyl group to form 1,3-diketone. This method not only provided the gateway to obtain a series of 1,3-diketones, but also afforded an operationally simple and efficient access to pyrazoles and isoxazoles.
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关键词
1,1-Diborylalkanes,Diacylation,Enolate boron species,Boron-stabilized carbanion intermediates,1,3-Diketones
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