<i>N</i>-Alkylations of<i>N</i>H-Sulfoximines and<i>N</i>H-Sulfondiimines with Alkyl Halides Mediated by Potassium Hydroxide in Dimethyl Sulfoxide
作者:Christine M. M. Hendriks、Rebekka A. Bohmann、Marina Bohlem、Carsten Bolm
DOI:10.1002/adsc.201400193
日期:2014.5.26
A general method for the N‐alkylation of NH‐sulfoximines and NH‐sulfondiimines has been developed, employing alkyl bromides with KOH in DMSO at room temperature. A variety of previously inaccessible N‐alkylated sulfoximines and sulfondiimines was prepared in good to excellent yields (up to 97%). As an application, the conditions were used to access the biologically active Suloxifen.
作者:Philip Lamers、Daniel L. Priebbenow、Carsten Bolm
DOI:10.1002/ejoc.201500855
日期:2015.9
As a result of our recent investigations into the N-functionalization of sulfoximines, an iron-catalyzed dealkylative acylation of N-alkylsulfoximines has been developed. This process involves a Polonovski-type dealkylation of an N-alkylated sulfoximine to afford a reactive intermediate that is trapped in the presence of a suitable aldehyde or anhydride to afford N-acyl- and N-aroylsulfoximine derivatives