已经开发出第一个实例,菲咯啉t BuOK促进了N-(2-碘苄基)吲哚的分子内自由基C–H芳基化,而没有过渡金属的参与。在叔丁醇钾和氯苯存在下,使用1,10-菲咯啉通过简单有效的分子内环化反应制备了多种取代的6 H-异吲哚并[2,1-a]吲哚。该策略为异吲哚并[2,1- a ]吲哚衍生物的合成提供了快速而通用的途径,用于合成药物和有机电致发光(EL)材料。
Dual Catalysis in Domino<i>N</i>-Benzylation/Intramolecular C-H Arylation: Regio- and Chemoselective Synthesis of Annelated Nitrogen Heterocycles
作者:Joydev K. Laha、Neetu Dayal、Swati Singh、Rohan Bhimpuria
DOI:10.1002/ejoc.201402395
日期:2014.9
A general method has been developed for the synthesis of fused nitrogenheterocycles by using a domino N-benzylation/C–Harylation reaction sequence. The details and yields of the domino process were compared with those of the two-step literature protocol. Fused azaindoles, which are otherwise difficult to obtain, were synthesized by using this process. The unprecedented catalytic role of PPh3 in this
Intramolecular Oxidative Arylations in 7-Azaindoles and Pyrroles: Revamping the Synthesis of Fused <i>N</i>
-Heterocycle Tethered Fluorenes
作者:Joydev K. Laha、Rohan A. Bhimpuria、Mandeep Kaur Hunjan
DOI:10.1002/chem.201604192
日期:2017.2.10
and pyrroles that, for the first time, provided direct access to 7‐azaindole‐ or pyrrole‐fused isoindolines and tetrahydroisoquinolines. In addition, N‐benzylation of 7‐azaindoles or pyrroles with sterically hindered sec‐benzyl alcohols by Mitsunobu reaction followed by intramolecular oxidative arylation allowed access to chiral congeners of fused isoindolines that have little precedence. A new opportunity
Phenanthroline-<i><sup>t</sup></i>BuOK Promoted Intramolecular C–H Arylation of Indoles with ArI under Transition-Metal-Free Conditions
作者:Xiang-Huan Shan、Bo Yang、Hong-Xing Zheng、Jian-Ping Qu、Yan-Biao Kang
DOI:10.1021/acs.orglett.8b03449
日期:2018.12.21
variety of substituted 6H-isoindolo [2, 1-a] indoles were prepared by a simple and efficient intramolecular cyclization using 1,10-phenanthroline in the presence of potassium tert-butoxide and chlorobenzene. This strategy provides a fast and versatile access to isoindolo[2,1-a]indole derivatives for the synthesis of pharmaceuticals and organic electroluminescent (EL) materials.
已经开发出第一个实例,菲咯啉t BuOK促进了N-(2-碘苄基)吲哚的分子内自由基C–H芳基化,而没有过渡金属的参与。在叔丁醇钾和氯苯存在下,使用1,10-菲咯啉通过简单有效的分子内环化反应制备了多种取代的6 H-异吲哚并[2,1-a]吲哚。该策略为异吲哚并[2,1- a ]吲哚衍生物的合成提供了快速而通用的途径,用于合成药物和有机电致发光(EL)材料。
Discovery of Potent Inhibitors against P-Glycoprotein-Mediated Multidrug Resistance Aided by Late-Stage Functionalization of a 2-(4-(Pyridin-2-yl)phenoxy)pyridine Analogue
designed and synthesized to discover potential inhibitors against P-glycoprotein-mediatedmultidrugresistance aided by late-stage functionalization of a 2-(4-(pyridin-2-yl)phenoxy)pyridine analogue. A novel class of potent P-gp reversalagents were investigated, and a lead compound 37 was identified as a potent P-gp reversalagent with strong bioactivity and outstanding affinity for P-gp.