Highly Selective Synthesis of 1,3-Enynes, Pyrroles, and Furans by Manganese(I)-Catalyzed C–H Activation
作者:Sara Cembellín、Toryn Dalton、Tobias Pinkert、Felix Schäfers、Frank Glorius
DOI:10.1021/acscatal.9b03965
日期:2020.1.3
A highly selective Mn(I)-catalyzed alkenylation of arenes and heteroarenes with 1,3-diynes is described. The reported transformation overcomes regio-, chemo-, and stereoselectivity challenges associated with the use of these coupling partners. Both symmetrical and unsymmetrical diynes can be applied in this protocol, affording single isomers not only in the synthesis of 1,3-enynes but also in the one-step
描述了具有1,3-二炔的芳烃和杂芳烃的高选择性Mn(I)催化的烯基化。报道的转化克服了与使用这些偶联配偶体相关的区域,化学和立体选择性的挑战。对称和不对称二炔均可用于此方案,不仅可用于合成1,3-烯炔,而且可用于一步制备吡咯和呋喃,从而提供单一异构体。这种简单的策略具有宽泛的官能团耐受性,良好的可重复性和制备规模的实用性。锰催化剂在此C–H活化方案中起着至关重要的作用,可实现以前具有挑战性的内部炔烃的高选择性。此外,最终产品的各种合成后功能化突出了该方法的综合价值。