Substituent effect on the UV spectra of p-disubstituted compounds XPh(CHCHPh)<sub>
<i>n</i>
</sub>
Y (<i>n</i>
= 0, 1, 2)
作者:Guanfan Chen、Chenzhong Cao
DOI:10.1002/poc.1660
日期:2010.8
effect of the parent molecular structure of p‐disubstituted compounds XPh(CHCHPh)nY (n = 0, 1, 2). The investigated result shows a good correlation between the UV absorption wavenumbers (υmax) and the three parameters for a diverse set of title compounds, and the correlation equation can be used to predict the UV absorption energy of compounds with the mentioned structure. This approach provides a new
Biomimetic Oxidative Dimerization of Anodically Generated Stilbene Radical Cations: Effect of Aromatic Substitution on Product Distribution and Reaction Pathways
作者:Fong-Jiao Hong、Yun-Yee Low、Kam-Weng Chong、Noel F. Thomas、Toh-Seok Kam
DOI:10.1021/jo500559r
日期:2014.5.16
type as a function of aromaticsubstitution. A reinvestigation of the electrochemical oxidation of 4,4′-dimethoxystilbene under various conditions was first carried out, and all products formed were fully characterized and quantitated. This was followed by a systematic investigation of the effect of aromaticsubstitution on the nature and distribution of the products. The aromatic substituents were found
对1,2-二芳基烯烃的电化学氧化进行了系统的研究,重点是详细的产物研究和产物类型随芳族取代作用的变化。首先对各种条件下的4,4'-二甲氧基sti的电化学氧化进行了重新研究,并对形成的所有产物进行了充分表征和定量。随后,系统地研究了芳族取代对产品性质和分布的影响。发现芳族取代基分为三大类,即,其中芳族取代基的性质和位置产生与4,4'-二甲氧基苯乙烯基本相同的产物的底物,例如四芳基四氢呋喃,脱氢四氢萘和醛。 (p-MeO或p -NMe 2在一个环上,X在另一个环上,其中X = o -MeO或p-烷基,或m-或p -EWG;例如4-甲氧基-4'-三氟甲基sti);那些产生茚满基(或四氢萘基)乙酰胺和脱氢四氢萘(或pallidols)(两个或一个被烷基取代的环,例如4,4'-二甲基1,2,5-二苯乙烯)的混合物的化合物;以及那些战略性放置施主基团(例如OMe和OH)的人导致了两性霉素F和pallidol型碳骨架(例如4