Aryl–secondary alkyl cross-coupling with aryl sulfonate esters as coupling partners remains a significant challenge. Efficient cross-coupling between aryl/alkenyl triflates and acyclic secondary alkylboronic acids is realized for the first time to provide a series of sterically congested acyclic secondary alkyl arenes/olefins in good to excellent yields. The employment of sterically bulky P,PO ligand L1/L2 is
芳基-仲烷基与芳基
磺酸酯作为偶联伙伴的交叉偶联仍然是一个巨大的挑战。首次实现了芳基/烯基
三氟甲磺酸酯与无环仲烷基
硼酸之间的有效交叉偶联,从而以良好或优异的收率提供了一系列空间上拥挤的无环仲烷基
芳烃/烯烃。使用空间庞大的P,P O
配体L1 /
L2对于高收率和选择性至关重要。该方法实现了男性
避孕药和PAF拮抗剂
棉酚的关键中间体的简明和4步合成。