For the first time, syntheses of 1,3-diarylbenzo[c]selenophenes are reported involving a selenium transfer reaction of keto-alcohol/benzo[c]furan using Woollins reagent.
首次报道了使用Woollins试剂的1,3-二芳基苯并[ c ]硒代苯的合成,涉及到酮醇/苯并[ c ]呋喃的硒转移反应。
Synthesis of Benzo[<i>k</i>
]fluoranthene Derivatives through Diels-Alder Reaction of 1,3-Diarylbenzo[<i>c</i>
]furans
作者:Jayachandran Karunakaran、Arasambattu K. Mohanakrishnan
DOI:10.1002/ejoc.201701137
日期:2017.12.8
symmetrical/unsymmetrical benzo[c]furans with acenaphthylene in xylenes at reflux temperatures followed by p-toluenesulfonic acid-mediated epoxide cleavage and dehydration furnished diaryl/heteroaryl-substituted benzo[k]fluoranthenes. This strategy could be successfully applied to the synthesis of dimeric and trimeric benzo[k]fluoranthenes. Functionalization of representative benzo[k]fluoranthene derivatives
Synthesis and characterization of 1,3-diarylbenzo[c]selenophenes
作者:P. Amaladass、Natarajan Senthil Kumar、Arasambattu K. Mohanakrishnan
DOI:10.1016/j.tet.2008.06.002
日期:2008.8
A series of 1,3-diarylbenzo[c]selenophenes (symmetrical/unsymmetrical) have been synthesized involving a selenium transfer reaction of keto-alcohol/benzo[c]furan using Woollins reagent. The optical and electrochemical studies of these diarylbenzo[c]selenophenes are correlated with their structures.
一系列1,3- diarylbenzo的[ C ^ ]硒吩(对称/不对称)已合成涉及酮-醇/苯并[硒转移反应Ç使用Woollins试剂]呋喃。这些二芳基苯并[ c ]硒代苯的光学和电化学研究与其结构相关。
Synthesis of Annulated Arenes and Heteroarenes Involving Lewis Acid-Mediated Regioselective Annulation of Unsymmetrical 1,2-(Diaryl/diheteroarylmethine)dipivalates
作者:Ramakrishnan Sivasakthikumaran、Meganathan Nandakumar、Arasambattu K. Mohanakrishnan
DOI:10.1021/jo301410w
日期:2012.10.19
A ZnBr2-mediated regioselectiveannulation of unsymmetrical 1,2-diarylmethinedipivalates in DCM at room temperature led to the formation of annulated arenes and heteroarenes. The annulation of the dipivalate proceeds through the intermediacy of benzylic carbocations followed by intramolecular cyclization and subsequent aromatization to give the annulated products. The annulation methodology is highly
室温下,DCM中ZnBr 2介导的不对称1,2-二芳基次甲基新戊二酸酯的区域选择性环化导致环化的芳烃和杂芳烃的形成。二戊酸酯的环化通过苄基碳阳离子的中间进行,然后进行分子内环化和随后的芳构化,以得到环化的产物。对于蒽和萘并[ b ]噻吩类似物的合成,环空方法学是非常有效的。