Synthesis of new thioxanthenes by organocatalytic intramolecular Friedel–Crafts reaction
作者:Tülay Yildiz
DOI:10.1080/00397911.2018.1482351
日期:2018.9.2
alcohols (1a–1v) using the intramolecular Friedel–Crafts reaction. The starting materials were obtained in two stages via a coupling reaction followed by the Grignard reaction. In this study, we tried for the first time to use some organic Brønsted acids as organocatalysts (3a–3h) in the intramolecular Friedel–Crafts cyclization reaction of thioether alcohols. The synthesis of original substituted thioxanthenes
Acid-catalysed intramolecular Friedel–Crafts annulation of hetero-atom-functionalized <i>para</i>-quinone methides: access to O-, S- and N-based heterocycles
We describe here an acid-mediated one-pot approach to access substituted xanthene and thioxanthane derivatives from ortho-heteroaryl phenyl-substituted para-quinone methides via 1,6 intramolecular arylation. The scope of this work was further elaborated to the synthesis of 10H-indolo[1,2-a]indole-based heterocyclic systems using indole based para-quinone methides.
我们在这里描述了一种酸介导的一锅法,通过1,6 分子内芳基化从邻杂芳基苯基取代的对醌甲基化物中获得取代的呫吨和噻吨烷衍生物。这项工作的范围进一步阐述为使用吲哚基对醌甲基化物合成10 H-吲哚并[1,2- a ]吲哚基杂环系统。
Preparation of Functionalized Aryl Magnesium Reagents by the Addition of Magnesium Aryl Thiolates and Amides to Arynes
作者:Wenwei Lin、Ioannis Sapountzis、Paul Knochel
DOI:10.1002/anie.200500443
日期:2005.7.4
A concise synthesis of ortho-substituted aryl-acrylamides—potent activators of soluble guanylyl cyclase
Horner-Emmons reaction of phosphonate amides with aldehydes leads to generation of o-substituted aryl-acrylamides. These compounds have been shown to be useful to quickly establish structure-activity relationships (SAR) for soluble guanylyl cyclase (sGC) activator drug discovery. (C) 2003 Elsevier Ltd. All rights reserved.