Building Molecular Complexity <i>via</i> Tandem Ru-catalyzed Isomerization/C−H Activation
作者:Agnieszka Bartoszewicz、Belén Martín-Matute
DOI:10.1021/ol900243x
日期:2009.4.16
A tandem isomerization/C-H activation of allylic alcohols was performed using a catalytic amount of RUCl2(PPh3)(3). A variety of ortho alkylated ketones have been obtained in excellent yields. This tandem process relies on an in situ generation of a carbonyl functional group that directs the ortho C-H bond activation.
Highly Linear Selective Cobalt-Catalyzed Addition of Aryl Imines to Styrenes: Reversing Intrinsic Regioselectivity by Ligand Elaboration
作者:Wengang Xu、Naohiko Yoshikai
DOI:10.1002/anie.201408028
日期:2014.12.15
Highlylinearselective, imine‐directed hydroarylation of styrene has been achieved with cobalt‐based catalytic systems featuring bis(2,4‐dimethoxyphenyl)(phenyl)phosphine and either 2‐methoxypyridine or DBU as a ligand and a Lewis base additive, respectively, thus affording a variety of 1,2‐diarylethanes (bibenzyls) in good yields under mild reaction conditions. The triarylphosphine controls the regioselectivity