Cr-Catalyzed Direct <i>ortho</i>-Aminomethylation of Phenols
作者:Junbin Shi、Yubin Wang、Qingqing Bu、Binyuan Liu、Bin Dai、Ning Liu
DOI:10.1021/acs.joc.1c01406
日期:2021.12.17
through the direct and efficient ortho-aminomethylation of N,N-dimethylanilines with phenols. The approach showed excellent site selectivity at the ortho-position of phenols and accommodated broad substrate scope and functional group compatibility for both N,N-dimethylanilines and phenols. Mechanistic studies revealed that the direct ortho-aminomethylation between N,N-dimethylanilines and phenols occurred
我们开发了一种 Cr 催化的策略,用于通过N,N-二甲基苯胺与苯酚的直接且有效的邻氨基甲基化来区域选择性地形成 C sp 2 -C sp 3键。该方法在苯酚的邻位显示出优异的位点选择性,并适应N,N-二甲基苯胺和苯酚的广泛底物范围和官能团相容性。机理研究表明,N,N-二甲基苯胺和苯酚之间的直接邻氨基甲基化是通过离子机制发生的。
Cu‐Catalyzed Cross‐Dehydrogenative
<i>ortho</i>
‐Aminomethylation of Phenols
作者:Congjun Yu、Frederic W. Patureau
DOI:10.1002/anie.201804829
日期:2018.9.3
A highly selective CuII‐catalyzed cross‐dehydrogenative ortho‐aminomethylation of phenols with aniline derivatives is described. The corresponding C(sp2)−C(sp3) coupling products were obtained in moderate to excellent yields under mild reaction conditions and with a broad substrate scope. A radical mechanism is proposed.
Nickel Catalyzed Ipso-hydroxylation and Subsequent Cross Dehydrogenative Coupling of Arylboronic Acids with Tertiary Amines: A Facile Access to α-phenolated Tertiary Amines
been developed for the α‐functionalization of tertiary amines via sequential oxidative hydoxylation and cross‐dehydrogenative coupling (CDC) of arylboronic acids with tertiary amines to afford α‐phenolated tertiary amines. The results demonstrate an easy arylation of C(sp3)−H bond in the presence of an inexpensive and readily available nickel metal salt.