Selective Palladium-Catalyzed Allenic C−H Bond Oxidation for the Synthesis of [3]Dendralenes
作者:Youai Qiu、Daniels Posevins、Jan-E. Bäckvall
DOI:10.1002/anie.201706211
日期:2017.10.9
oxidation was developed, and it provides a novel and straightforward synthesis of [3]dendralene derivatives. A variety of [3]dendralenes with diverse substitution patterns are accessible with good efficiency and high stereoselectivity. The reaction tolerates a broad substrate scope containing various functional groups on the allene moiety, including ketone, aldehyde, ester, and phenyl groups. Also, a wide range
开发了一种高选择性钯催化的烯丙基CH键氧化,它为[3] dendralene衍生物提供了一种新颖而直接的合成方法。具有高效率和高立体选择性的各种具有不同取代模式的[3]树枝状烯类均可以使用。该反应可耐受广泛的底物范围,该底物范围包含丙二烯部分上的各种官能团,包括酮,醛,酯和苯基。此外,还可以耐受各种带有给电子和吸电子芳基,丙烯酸酯,砜和膦酸酯基的烯烃。