Development of an Allenyne‐Alkyne [4+2] Cycloaddition and its Application to Total Synthesis of Selaginpulvilin A
作者:Anh Le、Saswata Gupta、Man Xu、Yuanzhi Xia、Daesung Lee
DOI:10.1002/chem.202202015
日期:2022.10.7
Complex character of a strained molecule. the α,3-dehydrotoluene generated via the [4+2] cycloaddition of allenyne-alkyne can be trapped with a hydrogen atom donor or nucleophiles with two opposite regioselectivity; oxygen nucleophiles are incorporated at the benzylic position whereas amine nucleophiles are incorporated onto the aromatic core. This unique reactivity and selectivity is exploited for