Selective Phthalimido-N-oxyl (PINO)-Catalyzed C–H Cyanation of Adamantane Derivatives
作者:Jan-Philipp Berndt、Frederik Erb、Lukas Ochmann、Jaqueline Beppler、Peter Schreiner
DOI:10.1055/s-0037-1610403
日期:2019.3
present a new method for the selective C(sp3)–H cyanation of adamantane derivatives with PINO as the hydrogen abstracting reagent. A cyano radical is thereby transferred from p -toluenesulfonyl cyanide, allowing the cyanation of adamantane derivatives in up to 71% yield. The protocol presents a novel way to orthogonally functionalized adamantanes that are otherwise difficult to prepare. Mechanistic studies
我们提出了一种以 PINO 作为夺氢试剂对金刚烷衍生物进行选择性 C(sp3)-H 氰化的新方法。氰基由此从对甲苯磺酰氰转移,使金刚烷衍生物氰化的产率高达 71%。该协议提出了一种新的方法来正交功能化金刚烷,否则很难制备。机理研究支持激进途径的假设。