Gupta, Shalini, A.K. Agarwal, and Poonam Garg. “Synthesis of α-Diazoketone by the Action of Diazoalkanes on Propionic Anhydride”. Asian Journal of Chemistry 22, no. 4 (March 30, 2010): 2939–2942. Accessed November 25, 2024. https://asianpubs.org/index.php/ajchem/article/view/11499.