Synthesis of <i>N</i>‐Monosubstituted Sulfondiimines by Metal‐free Iminations of Sulfilimium Salts
作者:Marco T. Passia、Niklas Bormann、Jas S. Ward、Kari Rissanen、Carsten Bolm
DOI:10.1002/anie.202305703
日期:2023.7.17
We report an operationally simple and safe method for the synthesis of N-monosubstituted sulfondiimines starting from stable sulfiliminium salts. This metal-free procedure employs a combination of iodine(III) reagents with iodine and 1,8-diazabicyclo[5.4.0]undec-7-en (DBU), providing particularly, S,S-dialkyl-substituted sulfondiimines in up to 85 % yield. Mechanistically, electrophilic nitrene cations