4-Nitrophenol → HCID 14347445, compound

Participants

Reaction Steps

As in Example 115, (E,E)-5-(2-methoxyphenyl)-5-(4-methoxyphenyl)-2,4-pentadienoic acid (3.4 g) and 4-nitrophenol (1.8 g) in 25 mL of dichloromethane was treated with 1,3-dicyclohexylcarbodiimide (2.27 g). The mixture was stirred at room temperature for 2 hours. After the usual work up, the ester was crystallized from 2-propanol to yield 3.0 g of (E,E)-5-(2-methoxyphenyl)-5-(4-methoxyphenyl)-2,4-pentadienoic acid 4-nitrophenyl ester, mp 149°-150° C.

Provenance & Evidence