Current Organic Chemistry - Volume 25, Issue 19, 2021

1,4-Naphthoquinones are a group of natural and synthetic substances that participate in various biochemical functions in most plants and animals, being involved in energy production, electron transport, blood coagulation, and generation of reactive oxygen species (ROS), among others. The performance of such biochemical functions is directly related to the functional groups linked to the 1,4-naphthoquinone scaffold, and the Read More

The asymmetric reduction of oximes and hydrazones is an attractive and versatile strategy for the synthesis of chiral amines, which are valuable building blocks in organic synthesis. This review summarizes the relevant developments made in the last decade on the enantioselective and diastereoselective reduction of oximes and hydrazones involving metalcatalyzed hydrogenation/hydrogenolysis reactions, hydride donor Read More

In the past few years, the number of protocols for α-amination of carbonyl compounds has dramatically increased, highlighting the importance of this moiety. While some classical approaches continue to be used, supported by novel catalysts, new methods with unique advantages have also emerged. Among these, a wide variety of conditions can be observed, such as the use of umpoled enolates with nucleophilic nitrogen so Read More

An overview of the current uptake of continuous flow techniques for various functional group interconversion reactions is presented. Besides highlighting a variety of prominent examples and their main features, this review provides insights into specific reaction classes, such as oxidations, reductions, rearrangements as well as different C-H functionalization processes. While this review can only include key examples from th Read More

The metal-mediated formation of heterocycles is one of the most emerging and important strategies in organic chemistry. The reactions utilized previously for the synthesis of heterocycles were less familiar to the scientists due to their complicated work-up, expensive nature, and difficult operations. The silver-assisted cyclic reactions are highly efficient for both regioselective and stereoselective syntheses of five-membere Read More