Man NYT, Li W, Stewart SG, Wu X-F. Transition Metal-free Methylation of Amines with Formaldehyde as the Reductant and Methyl Source. Chimia [Internet]. 2015 Jun. 24 [cited 2024 Oct. 31];69(6):345. Available from: https://www.chimia.ch/chimia/article/view/2015_345