Use of functionalized onium salts as a soluble support for organic synthesis
申请人:Vaultier Michel
公开号:US20070043234A1
公开(公告)日:2007-02-22
The invention relates to the use of a onium salt functionalized by at least one organic function, as a soluble support, in the presence of at least one organic solvent, for organic synthesis of a molecule, in a homogenous phase, by at least one transformation of said organic function. The onium salt enables the synthesized molecule to be released. The onium salt is present in liquid or solid form at room temperature and corresponds to formula A
1
+
, X
1
−
, wherein A
1
+
represents a cation and X
1
−
represents an anion.
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