Microwave-Assisted Synthesis of <i>N</i>,<i>N</i><i>‘</i>-Diaryl Cyanoguanidines
作者:Sean K. Hamilton、Doug E. Wilkinson、Gregory S. Hamilton、Yong-Qian Wu
DOI:10.1021/ol050728q
日期:2005.6.1
[reaction: see text] A mild, efficient, and high-yielding method for the synthesis of N,N'-diaryl cyanoguanidines from their corresponding thioureas under microwave-assisted conditions is described. A series of cyanoguanidines were synthesized containing both electron-donating and electron-withdrawing substituents. The reactions were facilitated by the use of polar solvents along with moderate temperatures
A facile and versatile method for the preparation of cyanoguanidines 7 from amines 3 and isothiocyanates 4 via a methylation, cyanamide-treatment sequence is described.
A Facile and Improved Synthesis of Cyanoguanidines from Carbodiimides
作者:Ramón Mestres、Claudio Palomo
DOI:10.1055/s-1980-29203
日期:——
Production of 1-mono-and 1, 2-disubstituted-3-cyanoguanidines