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Merck
  • Palladium-catalyzed direct olefination of urea derivatives with n-butyl acrylate by C-H bond activation under mild reaction conditions.

Palladium-catalyzed direct olefination of urea derivatives with n-butyl acrylate by C-H bond activation under mild reaction conditions.

Organic letters (2011-11-08)
Li Wang, Shen Liu, Zhi Li, Yongping Yu
ABSTRACT

Pd(II)-catalyzed aromatic C-H bond activation using urea as a directing group was achieved in a p-TsOH/AcOH medium under mild reaction conditions. The direct olefination products of various urea derivatives were produced from aryl urea derivatives and butyl acrylate in moderate to good yields.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Butyl acrylate, SAJ first grade, ≥99.0%
Supelco
Butyl acrylate, analytical standard
Sigma-Aldrich
Butyl acrylate, ≥99%, contains 10-60 ppm monomethyl ether hydroquinone as inhibitor