Rh-catalyzed enantioselectivehydrogenation of oxime acetates was first reported, which afforded a new approach for chiral amine synthesis.
首次报道了肟肟乙酸酯的Rh催化对映选择性氢化,为手性胺的合成提供了一种新方法。
Biocatalytic, Intermolecular C−H Bond Functionalization for the Synthesis of Enantioenriched Amides
作者:Soumitra V. Athavale、Shilong Gao、Zhen Liu、Sharath Chandra Mallojjala、Jennifer S. Hirschi、Frances H. Arnold
DOI:10.1002/anie.202110873
日期:2021.11.15
P411 heme enzymes enables intermolecular C−H amidation with high yields and exquisite enantioselectivity. The biocatalytic process utilizes stable hydroxamate esters as nitrenoid precursors and is amenable to scaleup. Mechanistic studies reveal rate-determining nitrenoid formation followed by a stepwise, hydrogen atom transfer-mediated C−Hfunctionalization.
C–H Amination via Electrophotocatalytic Ritter-type Reaction
作者:Tao Shen、Tristan H. Lambert
DOI:10.1021/jacs.1c03718
日期:2021.6.16
A method for C–H bond amination via an electrophotocatalytic Ritter-type reaction is described. The reaction is catalyzed by a trisaminocyclopropenium (TAC) ion in an electrochemical cell under irradiation. These conditions convert benzylic C–H bonds to acetamides without the use of a stoichiometric chemical oxidant. A range of functionality is shown to be compatible with this transformation, and several