Synthesis 2023; 55(18): 2943-2950
DOI: 10.1055/a-2050-9368
paper
Special Issue Electrochemical Organic Synthesis

Synthesis of Cyclopropylamines through an Electro-Induced Hofmann Rearrangement

Thomas Cantin
a   Normandie Univ., INSA Rouen Normandie, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
,
b   Université de Montréal, FRQ-NT Centre in Green Chemistry and Catalysis Department of Chemistry, 1375, av. Thérèse Lavoie-Roux, Montréal, QC H2 V 0B3, Canada
,
a   Normandie Univ., INSA Rouen Normandie, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
,
Philippe Jubault
a   Normandie Univ., INSA Rouen Normandie, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
› Author Affiliations
This work was partially supported by Normandie Université (NU), Région­ Normandie, the Centre National de la Recherche Scientifique (CNRS), Université de Rouen Normandie (URN), INSA Rouen Normandie­, Labex SynOrg (ANR-11-LABX-0029), the graduate school for research XL-Chem (ANR-18-EURE-0020 XLCHEM) and Innovation Chimie Carnot (I2C). This work is part of the EFLUX program supported by the European Union through the operational program FEDER/ FSE 2014-202.


Abstract

A practical access to cyclopropylamines from the corresponding amides is disclosed, according to an electro-induced Hofmann rearrangement. In an undivided cell under galvanostatic conditions, a panel of cyclopropyl amides was readily converted into the corresponding amines (17 examples, 23% to 94% yield). This reaction allowed an easy access to the versatile cyclopropylamines and is complementary to the existing methods.

Supporting Information



Publication History

Received: 27 January 2023

Accepted after revision: 09 March 2023

Accepted Manuscript online:
09 March 2023

Article published online:
25 April 2023

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