Organic Chemistry International

Research Article

Mg(HSO4)2/SiO2 as a Highly Efficient Catalyst for the Green Preparation of 2-Aryl-1,3-Dioxalanes/Dioxanes and Linear Acetals

Table 2

Synthesis of 4 and 5 using Mg(HSO4)2/SiO2 under solvent-free conditions.
EntryProductTime (min)Yield (%)a[References]
4a475301.tab.001 10 98 [14]
4b475301.tab.002 10 95 [13]
4c475301.tab.003 10 92 [26]
4d475301.tab.004 18 90 [26]
4e475301.tab.005 15 90 [13]
4f475301.tab.006 12 87 [26]
4g475301.tab.007 10 90 [13]
4h475301.tab.008 12 90 [14]
4i475301.tab.009 8 92 [27]
4j475301.tab.0010 16 95 [27]
4k475301.tab.0011 15 90 [14]
5a475301.tab.0012 5 95 [19]
5b475301.tab.0013 5 97 [27]
5c475301.tab.0014 10 95 [27]
5d475301.tab.0015 7 97 [27]
aIsolated yields.