“…The characteristic of stability in neutral environments, the comfort of preparation, and multiple applications, including as initiating materials for the Diels-Alder reaction, intermediates in industrial processes, and geminal diacetates (acylals), have been highlighted among the various protection approaches of aldehydes [2,3]. Ethanethiol, acetic anhydride, and alcohol are some of the reagents used to protect aldehydes [4]. The use of protic or Lewis acid catalysts such as AC-N-SO 4 H [5], magnetic Fe 3 O 4 @C-600-SO 3 H microspheres [6], SiO 2 -NaHSO 4 [7], STO/Al-P [8], poly(p-hydroxybenzaldehyde-co-p-phenol sulfonate) [9], tungstosulfonic acid (TSA) [3], hexabromoacetone (HBA) [1], (MNPs-PSA) [2], and 5,10,15,20-tetrakis(pentafluorphenylporphyrin) iron (III) chloride (Fe 5 F) [10] play an essential role in the better progress of the chemo-selective reactions.…”