Mitsunobu Reaction Using Basic Amines as Pronucleophiles
作者:Hai Huang、Jun Yong Kang
DOI:10.1021/acs.joc.7b00622
日期:2017.7.7
reaction to include amine nucleophiles to form C–N bonds through the utilization of N-heterocyclic phosphine-butane (NHP-butane) has been developed. Both aliphatic alcohols and benzyl alcohols are suitable substrates for C–N bond construction. Various acidic nucleophiles such as benzoic acids, phenols, thiophenol, and secondary sulfonamide also provide the desired products of esters, ethers, thioether
A Practical Electrophilic Nitrogen Source for the Synthesis of Chiral Primary Amines by Copper-Catalyzed Hydroamination
作者:Sheng Guo、Jeffrey C. Yang、Stephen L. Buchwald
DOI:10.1021/jacs.8b10564
日期:2018.11.21
and practical method for the catalytic installation of the amino group across alkenes and alkynes has long been recognized as a significant challenge in synthetic chemistry. As the direct hydroamination of olefins using ammonia requires harsh conditions, the development of suitable electrophilic aminating reagents for formal hydroamination methods is of importance. Herein, we describe the use of 1
A highly predictive 3D-QSAR model for binding to the voltage-gated sodium channel: Design of potent new ligands
作者:Congxiang Zha、George B. Brown、Wayne J. Brouillette
DOI:10.1016/j.bmc.2013.11.049
日期:2014.1
A comprehensive comparative molecular field analysis (CoMFA) model for the binding of ligands to the neuronal voltage-gated sodium channel was generated based on 67 diverse compounds. Earlier published CoMFA models for this target provided mu M ligands, but the improved model described here provided structurally novel compounds with low nM IC50. For example, new compounds 94 and 95 had IC50 values of 129 and 119 nM, respectively. (C) 2013 Elsevier Ltd. All rights reserved.
ZIKOLOVA S., TR. N.-I. XIM.-FARM. IN-T, 1978, 10, 33-46
作者:ZIKOLOVA S.
DOI:——
日期:——
One-Pot Multicomponent Synthesis of Allyl and Alkylamines Using a Catalytic System Composed of Ruthenium Nanoparticles on Copper <i>N</i>-Heterocyclic Carbene-Modified Silica
作者:Deepti Kalsi、Savarithai J. Louis Anandaraj、Manisha Durai、Claudia Weidenthaler、Meike Emondts、Steven P. Nolan、Alexis Bordet、Walter Leitner
DOI:10.1021/acscatal.2c04044
日期:2022.12.16
integrated one-pot synthesis of valuable allylamines and alkylamines from amines, formaldehyde, and terminal alkynes is achieved using a single catalyst material. This multifunctional catalytic system is composed of a silica support on which are jointly assembled ruthenium nanoparticles and covalently functionalized copper N-heterocyclic carbene (NHC) complexes, introducing a new generation of nanoparticles
使用单一催化剂材料实现了从胺、甲醛和末端炔烃中一锅法合成有价值的烯丙胺和烷基胺。这种多功能催化系统由二氧化硅载体组成,在其上共同组装了钌纳米粒子和共价功能化的铜N-杂环卡宾 (NHC) 配合物,引入了新一代固定在分子修饰表面上的纳米粒子。通过多种技术研究了所得 Ru@SiO 2 -[Cu-NHC] 材料的结构、结构、形态和电子特性,包括 N 2吸附、固态核磁共振、电子显微镜和 X 射线光电子能谱. Ru@SiO 2-[Cu-NHC] 被发现对一系列烯丙胺和烷基胺的一锅法合成具有活性和选择性,这些产品在精细化工和制药工业中非常重要。详细研究表明,固定化分子 Cu(I)–NHC 络合物负责胺、甲醛和末端炔烃的原子高效 A 3偶联,而所得炔丙基胺的选择性氢化由 Ru(0) 纳米粒子催化. 在单个载体上结合分子和纳米粒子位点的设计策略和制备方法非常灵活,为开发能够在一锅中进行复杂反应序列的多功能催化系统开辟了道路。