Rhodium-Catalyzed β-Dehydroborylation of Silyl Enol Ethers: Access to Highly Functionalized Enolates
作者:Jie Li、Pei Zhao、Ruoling Li、Wen Yang、Wanxiang Zhao
DOI:10.1021/acs.orglett.1c03796
日期:2021.12.17
efficient rhodium-catalyzed β-dehydroborylation of aldehyde-derived silyl enol ethers (SEEs) with bis(pinacolato)diboron (B2pin2) is disclosed. The borylation reactions proceeded well with alkyl- and aryl-substituted SEEs, affording a wide array of valuable functionalized β-boryl silyl enolates with high efficiency and excellent stereoselectivity. Moreover, the borylated products, through versatile
公开了醛衍生的甲硅烷基烯醇醚(SEE)与双(频哪醇)二硼(B 2 pin 2 )的有效铑催化的β-脱硼氢化。硼基化反应与烷基和芳基取代的 SEE 进行得很好,提供了一系列有价值的功能化 β-硼基甲硅烷基烯醇化物,具有高效率和优异的立体选择性。此外,borylated产品,通过通用的碳-硼键的变换,被容易地转化为合成多样有用分子,包括α羟基酮,官能看到,和宝石-difunctionalized醛。