Overcoming the Challenge of Meta-Methylation of Pyridine: A Cost-Effective Aldehyde-Catalyzed Strategy Brings New Breakthroughs

Overcoming the Challenge of Meta-Methylation of Pyridine: A Cost-Effective Aldehyde-Catalyzed Strategy Brings New Breakthroughs

Image source: J. Am. Chem. Soc.Introduction:The introduction of methyl groups can significantly enhance the activity of drugs, thus driving the development of various methylation strategies. Among these, C-H methylation is particularly noteworthy, but a universal method for meta-C-H methylation of pyridine—one of the most common nitrogen-containing heterocycles in pharmacophores—remains absent. This article reports a method … Read more

Preparation of Amines via Amide Reduction

Preparation of Amines via Amide Reduction

The reduction of amides is also a commonly used method for synthesizing amines, often employed for the monoalkylation of primary amines. The most common method for reducing amides to amines is through LAH under heated reflux. However, when sensitive functional groups are present within the molecule, such as halogens (especially bromine and iodine) on an … Read more