4-Nitrophenol → HCID 14347318, compound

Participants

Reaction Steps

As in Example 115, (2E,4Z)-5-(3-methoxyphenyl)-5-phenyl-2,4-pentadienoic acid (2.85 g) and 4-nitrophenol (1.56 g) in dichloromethane (35 mL) was treated with 1,3-dicyclohexylcarbodiimide (2.1 g) and the mixture was stirred at room temperature for 75 minutes. The usual work up furnished 3.5 g of crude product which was crystallized from 2-propanol to give 3.0 g of (2E,4Z)-5-(3-methoxyphenyl)- 5-phenyl-2,4-pentadienoic acid 4-nitrophenyl ester mp 155°-157° C.

Provenance & Evidence