Kulshrestha, Avidha, Jaya Pandey, and Deepa Panhekar. “Knoevenagel Condensation Shadowed by Michael Addition & O-Alkylation of Resorcinol, Malononitrile and Benzadehyde to Form Pyrrolidine, Piperidine and Morpholine Substituted Benzopyran Derivatives in Dry K2CO3”. Asian Journal of Chemistry 31, no. 7 (June 1, 2019): 1470–1472. Accessed November 24, 2024. https://asianpubs.org/index.php/ajchem/article/view/31_7_12.