diversity. A novel and efficient palladium-catalyzed direct sp3 C-H arylation of aryl and alkyl benzyl thioether derivatives with aryl bromides is reported. The reaction involves reversible deprotonation of the benzylic C-H's of the thioether with either LiN(SiMe3)2 or NaN(SiMe3)2 and subsequent cross-coupling to provide the functionalized products in up to 97% yield. A screen of 24 of the most successful
sp3杂化的CH键的芳基化是建立分子复杂性和多样性的有力策略。报道了新颖且有效的
钯催化的芳基和烷基苄基
硫醚衍
生物与芳基
溴化物的直接sp3 CH芳基化。该反应涉及用LiN(SiMe3)2或NaN(SiMe3)2对
硫醚的苄基CH's进行可逆的去质子反应,然后进行交叉偶联,以提供高达97%的收率的功能化产物。在交叉偶联
化学中对24种最成功的
配体进行了筛选,结果发现NiXantPhos是这种具有挑战性的偶联唯一可行的
配体。