Thatipally S, V.R. Acharyulu P, K. Dubey P. Pyridinium p-Toluenesulfonate: A Mild and Efficient Catalyst for The Regioselective Tetrahydropyranylation of Indazole Derivatives Under Solvent-Free Conditions. ajc [Internet]. 2010 Sep. 24 [cited 2024 Nov. 23];23(1):451-4. Available from: https://asianpubs.org/index.php/ajchem/article/view/10059