29768-32-9Relevant academic research and scientific papers
4-Dodecylbenzenesulfonic acid (DBSA) promoted solvent-free diversity-oriented synthesis of primary carbamates, S-thiocarbamates and ureas
Sardarian, Ali Reza,Inaloo, Iman Dindarloo
, p. 76626 - 76641 (2015/09/22)
A simple and highly efficient solvent-free method for the conversion of alcohols, phenols, thiols and amines to primary carbamates, S-thiocarbamates and ureas in the presence of 4-dodecylbenzenesulfonic acid (DBSA) as a cheap and green Bronsted acid reagent has been described. All products were obtained in good to excellent yields and characterized using FT-IR, 1H- and 13C-NMR, MS and CHNS techniques.
Unprecedented observation of sulfonamides in the transesterification of N-unsubstituted carbamates with sulfonyl chlorides
Dauvergne, Jér?me,Wellington, Kevin,Chibale, Kelly
, p. 43 - 47 (2007/10/03)
Sulfonamides have been identified as by-products in the base-mediated transesterification of N-unsubstituted carbamates with sulfonyl chlorides to give the corresponding sulfonates. A proposed mechanism and the synthesis of hindered 2,6-disubstituted arylsulfonates via this method are also reported.
SYNTHESES A L'AIDE D'HETEROCUMULENES. 4. Action L'Isocyanate De Chlorosulfonyle Sur les Phenols Encombres
Hedayatullah, Mir,Hugueny, Jean Claude
, p. 167 - 172 (2007/10/02)
The synthesis of the N-chlorosulfonylcarbamates derived from seven hindered phenols is described, as well as their hydrolysis giving a high yield of the corresponding simple carbamates, the selective substitution of their chlorine atom by the anilino radi
