Synthesis 2021; 53(23): 4516-4524
DOI: 10.1055/a-1545-7563
paper

Iridium-Catalyzed Transfer Hydrogenation for Construction of Quinolines from 2-Aminobenzyl Alcohols with Enones in Water

Nanhua Luo
,
Hongling Shui
,
Yuhong Zhong
,
Jiuzhong Huang
,
Renshi Luo

The authors thank the National Natural Science Foundation of China (21962004, 21562004) and the Jiangxi Provincial Department of Science and Technology (20192BAB203004). This work was financially supported by the Gannan Medical University (QD201816, YJ202027) and the Jiangxi Education Hall Science and Technology Foundation (GJJ180801).


Abstract

Herein, we describe a method for the synthesis of functionalized quinolines from 2-aminobenzyl alcohols with α,β-unsaturated ketones. This method exhibits tolerance to various functional groups and high efficiency, is environmentally benign, and can be performed on a gram scale. Control experiments suggest that this transformation is accomplished by iridium complex catalyzed transfer hydrogenation, which is then followed by Friedländer cyclization. The results display that alkali is essential for the high selectivities of this catalytic system.

Supporting Information



Publication History

Received: 10 June 2021

Accepted after revision: 07 July 2021

Accepted Manuscript online:
07 July 2021

Article published online:
11 August 2021

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