874536-76-2Relevant academic research and scientific papers
1-propanephosphonic acid cyclic anhydride (T3P) as an efficient promoter for the Lossen rearrangement: Application to the synthesis of urea and carbamate derivatives
Vasantha, Basavalingappa,Hemantha, Hosahalli P.,Sureshbabu, Vommina V.
experimental part, p. 2990 - 2996 (2010/10/21)
The synthesis of hydroxamic acids starting from carboxylic acids employing 1-propanephosphonic acid cyclic anhydride (T3P) activation is described. Application of ultrasonication accelerates this conversion. Further, the T3P has also been employed to activate the hydroxamates, leading to isocyanates via the Lossen rearrangement. The isocyanates were trapped with suitable nucleophiles to afford the corresponding ureas and carbamates. Georg Thieme Verlag Stuttgart New York.
2,4,5-trichlorophenyl-(9H-fluoren-9-ylmethoxycarbonylamino) methylcarbamates: Synthesis, isolation, characterization and utility in the synthesis of dipeptidyl ureas
Suresh Babu, Vommina V.,Kantharaju
, p. 1046 - 1053 (2007/10/03)
An efficient synthesis of 2,4,5-trichlorophenyl-(9H-fluoren-9- ylmethoxycarbonylamino)methylcarbamates employing isocyanates derived from several Fmoc-amino acids has been described. All the carbamates made have been obtained as crystalline solids and are
