2-Propenoic acid, 3-phenyl- → N,N'-Dicyclohexylurea

Participants

Reaction Steps

40 g of cinnamic acid and 50 g of dicyclohexylcarbodiimide were added to a 1 L round 3-necked flask equipped with a dropping funnel and a cooler, and also 600 mL of toluene newly distilled from sodium ketyl was added thereto, and the resultant mixture was refluxed to yield a homogeneous solution. After about 30 minutes, 48 g of 3-aminopropyltrimethoxysilane was dropped over 30 minutes through the dropping funnel. The resultant reaction mixture was refluxed for 4 hours, and then toluene was removed by vacuum distillation without contacting with moisture. Dicyclohexyl urea formed in a remaining solution was removed by filtration to yield a product. The resultant product was determined using FT-IR and thin layer chromatography. Yield of the resultant product is about 30 g.

Provenance & Evidence