Parallel synthesis and spectroscopic analysis of a collection of heterocycles based on the diazabenz[e]aceanthrylene core structure
作者:Alan M. Jones、Tomas Lebl、Stephen Patterson、Tanja van Mourik、Herbert A. Früchtl、Douglas Philp、Alexandra M.Z. Slawin、Nicholas J. Westwood
DOI:10.1016/j.tet.2008.10.049
日期:2009.1
A practical strategy for the synthesis of diazabenz[e]aceanthrylene-based heterocycles is reported. The key step in this approach is a microwave-assisted condensation and cyclisation reaction between an anthranilic acid derivative and a 2′-carbomethoxy substituted N-aryl lactam. The scope of the reaction has been explored as a function of both the nature and position of substituents in both components
报道了一种合成基于二氮杂[ e ]乙炔基杂环的实用策略。该方法的关键步骤是邻氨基苯甲酸衍生物与2'-羰甲氧基取代的N-芳基内酰胺之间的微波辅助缩合和环化反应。已经根据两种组分中取代基的性质和位置以及内酰胺环尺寸的变化来探索反应的范围。使用NMR,X射线晶体学和计算技术描述并探索了整个化合物集合中观察到的有趣的结构和光谱变化。
Asymmetric Catalytic Oxidative Cleavage of Polycyclic Systems: The Synthesis of Atropisomeric Diazonanes and Diazecanes
作者:Alan M. Jones、Gu Liu、Magali M. Lorion、Stephen Patterson、Tomas Lebl、Alexandra M. Z. Slawin、Nicholas J. Westwood
DOI:10.1002/chem.201003188
日期:2011.5.9
internal double bonds in polycyclic systems can give access to compounds containing medium‐ to large‐sized rings. In this example, the nine‐ and ten‐membered ring containing compounds that resulted from the mCPBA‐mediated (mCPBA=meta‐chloroperoxybenzoic acid) oxidative cleavage reaction were shown to exhibit atropisomerism. The reaction of the polycyclic system with catalytic amounts of ruthenium tetraoxide
Mechanistic Investigation of a Novel Medium-Sized Ring Rearrangement
作者:Alan Jones、Aneesa Al-Ani
DOI:10.1055/s-0036-1589141
日期:2018.3
The dominant mechanism operating in a recently disclosed ring contraction is revealed for the first time. New insight and supporting evidence into a classic ring-contraction strategy within a rigidified larger ring system are provided.