Pyridinyl Directed Alkenylation with Olefins via Rh(III)-Catalyzed C–C Bond Cleavage of Secondary Arylmethanols
作者:Hu Li、Yang Li、Xi-Sha Zhang、Kang Chen、Xin Wang、Zhang-Jie Shi
DOI:10.1021/ja205228y
日期:2011.10.5
Novel C-C bond cleavage of secondary alcohols through Rh(III)-catalyzed β-carbon elimination directed by a pyridinyl group is reported. A five-membered rhodacycle is proposed as a key intermediate, which undergoes further alkenylation with various olefins. This novel transformation shows high efficiency along with excellent selectivity in mild conditions. A wide range of functionalities are compatible
报道了仲醇通过由吡啶基团引导的 Rh(III) 催化的 β-碳消除来裂解仲醇的新型 CC 键。五元罗达环被提议作为关键中间体,它与各种烯烃进行进一步的烯基化。这种新型转化在温和条件下显示出高效率和出色的选择性。兼容多种功能。本研究提供了一种新的策略来进行 CC 键活化。