A metal‐free oxidative esterification or thio‐esterification of readily available substituted malononitrile and alcohol or thiol has been developed by simply mixing α‐substituted malononitrile and alcohol or thiol in the presence of base under a molecular oxygen atmosphere.
Oxidative Synthesis of α‐Nitroketones from α‐Substituted Malononitrile and Nitromethane Using Molecular Oxygen without Condensation Reagents
作者:Yujiro Hayashi、Emanuele Cocco、Hinata Odaira、Hiroaki Matoba、Naoki Mori
DOI:10.1002/ejoc.202300964
日期:2024.2.12
A new and feasible oxidative synthetic method for α-nitroketones from α-substituted malononitriles and nitromethane under molecular oxygen has been developed. This provides an environmentally friendly synthesis of α-nitroketones using only base and molecular oxygen, without the need for any condensation reagents. The method avoids the use of dangerous and highly polluting chemicals enabling a safe