27098-56-2Relevant academic research and scientific papers
Synthesis of unsymmetrical phenylurea derivatives via oxidative cross coupling of aryl formamides with amines under metal-free conditions
Reddy, Nagireddy Veera,Kumar, Pailla Santhosh,Reddy, Peddi Sudhir,Kantam, Mannepalli Lakshmi,Reddy, Kallu Rajender
supporting information, p. 805 - 809 (2015/02/19)
A new synthetic approach for phenylurea derivatives involving the cross coupling of N-aryl formamides with amines through the formation of isocyanate intermediates in the presence of hypervalent iodine reagents is described.
Acetoacetanilides as masked isocyanates: Facile and efficient synthesis of unsymmetrically substituted ureas
Wei, Ying,Liu, Jing,Lin, Shaoxia,Ding, Hongqian,Liang, Fushun,Zhao, Baozhong
supporting information; experimental part, p. 4220 - 4223 (2010/11/04)
Figure Presented. A general and practical method for the preparation of unsymmetrically substituted ureas has been developed. By the reactions of acetoacetanilides with various amines including primary/secondary amines, a series of substituted aryl ureas were achieved in high yields. Acetoacetanilide substrates can be considered as masked reagents that liberate reactive isocyanates in situ.
