Synthesis 2021; 53(11): 1962-1970
DOI: 10.1055/s-0040-1706621
paper

A Magnetically Recyclable Palladium-Catalyzed Formylation of Aryl Iodides with Formic Acid as CO Source: A Practical Access to Aromatic Aldehydes

Shengyong You
a   Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. of China
b   Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330029, P. R. of China
,
Rongli Zhang
a   Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. of China
,
Mingzhong Cai
a   Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. of China
› Author Affiliations
We thank the National Natural Science Foundation of China (No. 21462021), the Natural Science Foundation of Jiangxi Province of China­ (No. 20161BAB203086) and Key Laboratory of Functional Small Organic Molecule, Ministry of Education (No. KLFS-KF-201704) for financial support.


Abstract

A magnetically recyclable palladium-catalyzed formylation of aryl iodides under CO gas-free conditions has been developed by using a bidentate phosphine ligand-modified magnetic nanoparticles-anchored­ palladium(II) complex [2P-Fe3O4@SiO2-Pd(OAc)2] as catalyst, yielding a wide variety of aromatic aldehydes in moderate to excellent yields. Here, formic acid was employed as both the CO source and the hydrogen donor with iodine and PPh3 as the activators. This immobilized palladium catalyst can be obtained via a simple preparative procedure and can be facilely recovered simply by using an external magnetic field, and reused at least 9 times without any apparent loss of catalytic activity.

Supporting Information



Publication History

Received: 03 October 2020

Accepted after revision: 10 November 2020

Article published online:
13 January 2021

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