1228602-34-3Relevant articles and documents
Novel phosphoranes containing urea derivatives: Synthesis and characterization
Afshar, Davood Aghaei,Islami, Mohammad Reza
experimental part, p. 2238 - 2246 (2010/07/14)
N-Acetyl-N'-methyl urea or ethyl urea in the presence of an acetylenic ester and a desired phosphine functioned as a NH-acid and added to the triple bond in a chemoselective reaction. One of the obtained products underwent lactonization to the correspondi