Synthesis of <i>N</i>-Substituted Sulfamate Esters from Sulfamic Acid Salts by Activation with Triphenylphosphine Ditriflate
作者:J. Miles Blackburn、Melanie A. Short、Thomas Castanheiro、Suraj K. Ayer、Tobias D. Muellers、Jennifer L. Roizen
DOI:10.1021/acs.orglett.7b03059
日期:2017.11.3
A general approach to access sulfamate esters through preparation of sulfamic acid salts, subsequent activation with triphenylphosphine ditriflate, and nucleophilic trapping is disclosed. The method proceeds in modest to excellent yields to incorporate nucleophiles derived from aliphatic alcohols and phenols. This approach can be employed to furnish differentially substituted sulfamides.
Efficient synthesis of unsymmetrical sulfamides from sulfamic acid salts by activation with triphenylphosphine ditriflate
作者:Mina F. Shehata、Melanie A. Short、Matthew A. Sanders、Jennifer L. Roizen
DOI:10.1016/j.tet.2019.02.063
日期:2019.6
A general approach to prepare unsymmetrical sulfamides is described. This method relies on the activation of sulfamic acid salts with triphenylphosphine ditriflate, and subsequent trapping by a nucleophilic amine. This strategy improves access to N-octadecyl-N′-propylsulfamide, a feeding suppressant.