Literature DB >> 24261576

Conversion of pyridine to imidazo[1,2-a]pyridines by copper-catalyzed aerobic dehydrogenative cyclization with oxime esters.

Huawen Huang1, Xiaochen Ji, Xiaodong Tang, Min Zhang, Xianwei Li, Huanfeng Jiang.   

Abstract

A rapid and environmentally friendly conversion of pyridine to imidazo[1,2-a]pyridines has been developed via copper-catalyzed aerobic dehydrogenative cyclization with ketone oxime esters.

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Year:  2013        PMID： 24261576     DOI： 10.1021/ol403105p

Source DB:  PubMed          Journal:  Org Lett        ISSN： 1523-7052            Impact factor:   6.005


  5 in total

1.  Transition-metal-free regioselective C-H halogenation of imidazo[1,2-a]pyridines: sodium chlorite/bromite as the halogen source.

Authors:  Junxuan Li; Jiayi Tang; Yuanheng Wu; Qiuxing He; Yue Yu
Journal:  RSC Adv       Date:  2018-02-01       Impact factor: 4.036

2.  Efficient access to 2,3-diarylimidazo[1,2-a]pyridines via a one-pot, ligand-free, palladium-catalyzed three-component reaction under microwave irradiation.

Authors:  Yuanxiang Wang; Brendan Frett; Hong-yu Li
Journal:  Org Lett       Date:  2014-05-22       Impact factor: 6.005

3.  Switching the Regioselectivity Access to Pyrroles and Isoquinolines from Ketoxime Acetates and Ynals.

Authors:  Tanggao Liu; Fan Xu; Xiaojuan Liu; Zhiqing Huang; Lipeng Long; Guohai Xu; Hong Xiao; Zhengwang Chen
Journal:  ACS Omega       Date:  2020-11-23

4.  An efficient synthesis of new imidazo[1,2-a]pyridine-6-carbohydrazide and pyrido[1,2-a]pyrimidine-7-carbohydrazide derivatives via a five-component cascade reaction.

Authors:  Hajar Hosseini; Mohammad Bayat
Journal:  RSC Adv       Date:  2019-03-05       Impact factor: 4.036

5.  Synthesis of 5-amino-N'-(9H-fluoren-9-ylidene)-8-nitro-7-aryl-1,2,3,7-tetrahydroimidazo[1,2-a]pyridine-6-carbohydrazide derivatives based on heterocyclic ketene aminals.

Authors:  Hajar Hosseini; Mohammad Bayat
Journal:  RSC Adv       Date:  2018-12-11       Impact factor: 4.036
  5 in total

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