Tandem Rh(III)-Catalyzed C–H Heteroarylation of Indolyl Ketones and Cu(II)-Promoted Intramolecular Cyclization: One-Pot Access to Blue-Emitting Phenanthrone-Type Polyheterocycles
作者:Xingwen Pu、Mangang Zhang、Jingbo Lan、Shuyou Chen、Zheng Liu、Wenbo Liang、Yudong Yang、Min Zhang、Jingsong You
DOI:10.1021/acs.orglett.9b00089
日期:2019.2.15
Disclosed herein is a highly efficient one-pot synthetic strategy to phenanthrone-type polyheterocycles via tandem rhodium(III)-catalyzed ortho-C–H heteroarylation of indolyl ketones and copper(II)-promoted intramolecular cyclization. This protocol enables a library of blue-emitting fluorophores with high quantum yields and narrow full widths at half-maximum to be rapidly built from readily available
本文公开了一种高效的一锅合成策略,该方法通过串联铑(III)催化吲哚基酮的邻位-C-H杂芳基化和铜(II)促进的分子内环化反应来合成菲咯啉类多杂环化合物。该协议可以从容易获得的基质中快速构建具有高量子产率和半峰全宽的蓝色发射荧光团库,其中6,6,7,9,12-五甲基-6,12-二氢5 H-苯并呋喃[2,3- a ]咔唑-5-酮(4a)表现出纯蓝色发射,其国际发光委员会坐标为(0.15,0.09),在CH 2中的高量子产率为85%Cl 2溶液。