Computational and DNMR Investigation of the Isomerism and Stereodynamics of the 2,2′-Binaphthalene-1,1′-diol Scaffold
作者:Andrea Mazzanti、Michel Chiarucci、Keith W. Bentley、Christian Wolf
DOI:10.1021/jo5005229
日期:2014.4.18
stabilities of three conformational isomers of 2,2′-binaphthalene-1,1′-diol diisobutyrate and the energy barriers to rotation about the pivotal aryl–aryl bond and the two aryl–oxygen bonds were investigated by variable-temperature NMR spectroscopy in conjunction with DFT computations. The experimental and calculated data were found to be in very good agreement and provide new insights into the dynamic
Electrocatalytic Oxidative Coupling Reaction of Naphthols and Naphthol Ethers on a TEMPO Modified Graphite Felt Electrode
作者:Yoshitomo Kashiwagi、Hiroaki Ono、Tetsuo Osa
DOI:10.1246/cl.1993.81
日期:1993.1
efficiency on a graphitefeltelectrode coated with a thin poly(acrylic acid) layer immobilizing 4-amino-2,2,6,6-tetramethylpiperidinyl-1-oxyl (4-amino-TEMPO). 1-Naphthol and 1-methoxynaphthalene were also completely converted to the predicted 1,1′-, 1,2′-, and 2,2′- positioned coupling products. The reaction proceeds via electrocatalyticoxidation of the modified-TEMPO species. The electrode was not inactivated
2-萘酚和 2-甲氧基萘在石墨毡电极上以超过 90% 的电流效率被定量氧化为相应的 1,1'-联萘,该电极涂有固定 4-氨基-2,2 的聚(丙烯酸)薄层, 6,6-四甲基哌啶基-1-氧基(4-氨基-TEMPO)。1-萘酚和1-甲氧基萘也完全转化为预测的1,1'-、1,2'-和2,2'-定位偶联产物。该反应通过修饰的 TEMPO 物质的电催化氧化进行。电极在电解过程中未失活,可重复使用。
Chirality Sensing of Amines, Diamines, Amino Acids, Amino Alcohols, and α-Hydroxy Acids with a Single Probe
作者:Keith W. Bentley、Yea G. Nam、Jaslynn M. Murphy、Christian Wolf
DOI:10.1021/ja410428b
日期:2013.12.4
A stereodynamicprobe for determination of the absolute configuration and enantiomeric composition of chiral amines, diamines, aminoalcohols, amino acids, and α-hydroxy carboxylic acids is described. The chiralitysensing is based on spontaneous asymmetric transformation of the first kind with stereolabile binaphtholate boron and zinc complexes. The substrate binding and chiral amplification processes
DETERMINING STEREOISOMERIC EXCESS, CONCENTRATION AND ABSOLUTE CONFIGURATION
申请人:GEORGETOWN UNIVERSITY
公开号:US20160011156A1
公开(公告)日:2016-01-14
The present invention is directed to analytical methods for determining the concentration, and/or stereoisomeric excess, and/or absolute configuration of chiral analytes in a sample.
本发明涉及用于确定样品中手性分析物的浓度、立体异构体过量和/或绝对构型的分析方法。
Determining stereoisomeric excess, concentration and absolute configuration
申请人:GEORGETOWN UNIVERSITY
公开号:US10012627B2
公开(公告)日:2018-07-03
The present invention is directed to analytical methods for determining the concentration, and/or stereoisomeric excess, and/or absolute configuration of chiral analytes in a sample.