Cobalt-Catalyzed C(sp<sup>2</sup>)–H Allylation of Biphenyl Amines with Unbiased Terminal Olefins
作者:Alessio Baccalini、Stefania Vergura、Pravas Dolui、Siddhartha Maiti、Subhabrata Dutta、Soham Maity、Farheen Fatima Khan、Goutam Kumar Lahiri、Giuseppe Zanoni、Debabrata Maiti
DOI:10.1021/acs.orglett.9b03484
日期:2019.11.1
Unactivated olefins usually react poorly in conventional alkenylation reactions. Their introduction via C-H activation is limited to aromatic acids. Herein, we disclose a C-H functionalization protocol of aromatic amines with unactivated olefins, which shows exclusive allylic selectivity for the distal ring of the biphenyl system by exploiting a readily available cobalt(II) catalyst. The allylation
未活化的烯烃通常在常规的烯基化反应中反应不良。它们通过CH活化的引入仅限于芳族酸。在这里,我们公开了具有未活化烯烃的芳族胺的CH官能化方案,该方案通过利用易于获得的钴(II)催化剂显示出联苯系统远端环的烯丙基选择性。烯丙基化顺利进行,涉及大量的无偏烯烃和联芳基,使联苯支架的功能化成为可能。