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Table 1 Reported syntheses of anthocyanidins

From: Synthetic anthocyanidins and their antioxidant properties

Conditions

Yield (%)

References

Salicylaldehyde, acetophenone, HBF4, HOAc, acetic anhydride, 60 °C, 12 h

40–58, 23–78

Katritzky et al. (1998), Gomes et al. (2009)

Salicylaldehyde, acetophenone, BF3 etherate, neat

81

Kuhnert et al. (2001)

Salicylaldehyde, acetophenone, H2SO4, HOAc, overnight

40–88

Calogero et al. (2013)

Salicylaldehyde, acetophenone, EtOAc, HCl gas, 0 °C, 3 days

56–75, 55–84

Mora-Soumille et al. (2013), Mas (2003)

Salicylaldehyde, acetophenone, HPF6, HOAc, 2 days

89

Kueny-Stotz et al. (2008)

Salicylaldehyde, acetophenone, HCl gas, formic acid, 5 h

56

Moncada et al. (2004), Michaelidis and Wizinger (1951)

Salicylaldehyde, benzaldehyde, ethyl chloroformate, HClO4, 1–12 h

49–95

Sato et al. (1999)

Salicylideneacetophenone, HBF4OEt2 or HOTf in Et2O

62–67

Fichtner et al. (2001)

Phenol, arylethynylketone, HPF6, HOAc, r.t.

82–99

Kueny-Stotz et al. (2007)