Khazaei, Ardeshir, Abbas Amini Manesh, Amin Rostami, Heidar Ali Alavi-Nik, and Zahra Toodeh Roosta. 2010. “Conversion of Aldehydes to Acylals Using Acetic Anhydride in Presence of Catalytic Amount of Fe(NO3)3&Middot;9H2O Under Solvent-Free Conditions at Room Temperature”. Asian Journal of Chemistry 23 (2):614-16. https://asianpubs.org/index.php/ajchem/article/view/15815.