Directing Group in Decarboxylative Cross-Coupling: Copper-Catalyzed Site-Selective C–N Bond Formation from Nonactivated Aliphatic Carboxylic Acids
作者:Zhao-Jing Liu、Xi Lu、Guan Wang、Lei Li、Wei-Tao Jiang、Yu-Dong Wang、Bin Xiao、Yao Fu
DOI:10.1021/jacs.6b05788
日期:2016.8.3
Copper-catalyzed directed decarboxylative amination of nonactivated aliphatic carboxylic acids is described. This intramolecular C-N bond formation reaction provides efficient access to the synthesis of pyrrolidine and piperidine derivatives as well as the modification of complex natural products. Moreover, this reaction presents excellent site-selectivity in the C-N bond formation step through the
Aliphatic C–H Bond Oxidation with Hydrogen Peroxide Catalyzed by Manganese Complexes: Directing Selectivity through Torsional Effects
作者:Michela Milan、Massimo Bietti、Miquel Costas
DOI:10.1021/acs.orglett.8b00929
日期:2018.5.4
Substituted N-cyclohexyl amides undergo aliphatic C–Hbondoxidation with H2O2 catalyzed by manganese complexes. The reactions are directed by torsional effects leading to site-selective oxidation of cis-1,4-, trans-1,3-, and cis-1,2-cyclohexanediamides. The corresponding diastereoisomers are unreactive under the same conditions. Competitive oxidation of cis–trans mixtures of 4-substituted N-cyclohexylamides
取代的N-环己基酰胺经过锰配合物催化的H 2 O 2的脂族C–H键氧化。反应受扭转作用指导,导致顺式-1,4-,反式-1,3-和顺式-1,2-环己二酰胺的位点选择性氧化。相应的非对映异构体在相同条件下不反应。竞争性氧化4-取代N-环己基酰胺的顺-反混合物可导致顺式异构体的定量转化,从而可以分离和连续转化反式异构体转变成具有出色的位点选择性和良好的对映选择性的致密官能化的氧化产物。
Examples of xylochemistry: colorants and polymers
作者:Jonas Kühlborn、Ann-Kathrin Danner、Holger Frey、Rishab Iyer、Anthony J. Arduengo、Till Opatz
DOI:10.1039/c7gc01244f
日期:——
The syntheses of indigo dyes and polyamides as representatives of two classes of everyday chemical products based on wood-based starting materials, the so-called xylochemicals, are described.
Compounds for Treating Disorders Mediated by Metabotropic Glutamate Receptor 5, and Methods of Use Thereof
申请人:Hardy Larry Wendell
公开号:US20110319380A1
公开(公告)日:2011-12-29
Provided herein are compounds and methods of synthesis thereof. The compounds set forth herein are useful for the treatment, prevention, and/or management of various disorders, such as neurological disorders, neurodegenerative disorders, neuropsychiatric disorders, disorders of cognition, learning or memory, gastrointestinal disorders, lower urinary tract disorder, and cancer. Compounds set forth herein modulate the activity of metabotropic glutamate receptor 5 (mGluR5) in the central nervous system or the periphery. Pharmaceutical formulations containing the compounds and their methods of use are also provided herein.