Nickel-Catalyzed Amination of α-Aryl Methyl Ethers
作者:Purvish Patel、Sophie A. L. Rousseaux
DOI:10.1055/s-0039-1690718
日期:2020.3
α-Aryl amines are prevalent in pharmaceutically active compounds and natural products. Herein, we describe a Ni-catalyzed protocol for their synthesis from readily available α-aryl ethers. While α-aryl ethers have been used as electrophiles in Ni-catalyzed C–C bond formations, their use in C–heteroatom bond formation is much less prevalent. Preliminary mechanistic insight suggests that oxidative addition
α-芳胺普遍存在于药物活性化合物和天然产物中。在这里,我们描述了一种镍催化的协议,用于从容易获得的 α-芳基醚合成它们。虽然 α-芳基醚已被用作 Ni 催化的 C-C 键形成中的亲电试剂,但它们在 C-杂原子键形成中的使用要少得多。初步的机理见解表明,阴离子配体促进了氧化加成,并且还原消除是一个可逆过程。
Ruthenium-catalyzed direct amination of alcohols with tertiary amines
作者:Jiaying Luo、Mingyue Wu、Fuhong Xiao、Guojun Deng
DOI:10.1016/j.tetlet.2011.03.084
日期:2011.5
A highly selective phosphine-based ruthenium catalyst system efficiently catalyzes the direct amination of alcohols with aliphatic tertiary amines, yielding unsymmetric tertiary amines in yields up to 87%. Ligand and solvent both affect the reaction yields significantly. The reaction can be performed with a wide variety of functionalities.
Palladium-Catalyzed Nucleophilic Benzylic Substitutions of Benzylic Esters
作者:Ryoichi Kuwano、Yutaka Kondo、Yosuke Matsuyama
DOI:10.1021/ja037735z
日期:2003.10.1
A palladium complex generated in situ from [Pd(eta3-C3H5)(cod)]BF4 and DPPF is a good catalyst for benzylic alkylation of benzyl methyl carbonate with the carbanion of dimethyl malonates. The catalytic reaction is applicable to a wide range of the benzylations of benzylic esters with malonates. The catalytic activity was heavily affected by the bite angle of the bidentate phosphine ligand on palladium