Synthesis of <i>N</i>‐Acylsulfenamides from (Hetero)Aryl Iodides and Boronic Acids by One‐Pot Sulfur‐Arylation and Dealkylation
作者:Nathaniel S. Greenwood、Nicholas P. Cerny、Anthony P. Deziel、Jonathan A. Ellman
DOI:10.1002/anie.202315701
日期:2024.1.15
general one-pot approach for the synthesis of N-acylsulfenamides from commercially abundant (hetero)aryl iodides and boronicacids is reported. Broad scope and high functional group compatibility were observed including for late-stage incorporation of sulfenamide functionality in complex drugs and drug precursors. Sulfur-functionalization then enables the synthesis of diverse, medicinally relevant
Preparation of Sulfilimines by Sulfur-Alkylation of <i>N</i>-Acyl Sulfenamides with Alkyl Halides
作者:Andrew T. Champlin、Jonathan A. Ellman
DOI:10.1021/acs.joc.3c00750
日期:2023.6.2
Sulfur alkylation of N-acyl sulfenamides with alkyl halides provides sulfilimines in 47% to 98% yields. A broad scope was established with a variety of aryl and alkyl sulfenamides, including for different N-acyl groups. Alkyl halides with different steric and electronic properties were effective inputs, including methyl, primary, secondary, benzyl, and propargyl halides. A proof-of-concept asymmetric
ESR studies of nitrogen-centered free radicals. 27. First electron spin resonance spectroscopic study of aliphatic RCONSR1 radicals. Oxygen-17 and sulfur-33 hyperfine splittings