Salicylic Acid → Calcium bis(5-hexadecyl-2-hydroxybenzoate)

Participants

Reaction Conditions

Reaction Steps

The 5-(hexadec-1-yl)salicylic acid of Example 3 (3.16 g) was mixed with a commercial lower alkyl (i.e. less than C20) salicylic acid (Infineum M7103, obtainable from Infineum UK Limited, 3.89 g), and 4-(hexadec-1-yl)phenol of Example 2 (0.34 g). The salicylic acid mixture and xylene (100 g) were mixed together at room temperature. Calcium hydroxide (2.50 g), a promoter (methanol:water (97%:3%), 25.29 ml) and further xylene (120 g) were added, nitrogen passed through the mixture (60 ml.min−1) and the resulting mixture heated in an oil bath at 40° C. for 1 hour.

Provenance & Evidence