Palladium-Catalyzed CN Cross-Coupling of<i>N′</i>-Monosubstituted Sulfondiimines with Aryl Bromides
作者:Mathieu Candy、Rebekka Anna Bohmann、Carsten Bolm
DOI:10.1002/adsc.201200754
日期:2012.11.12
general method for the N-arylation of sulfondiimines with arylbromides using tris(dibenzylideneacetone)dipalladium(0) [Pd2(dba)3] and 2-dicyclohexylphosphino-2′,6′-diisopropoxybiphenyl (RuPhos) as catalyst system was developed. A new benzothiazine was obtained, and a protocol for the cleavage of para-methoxyphenyl (PMP) groups in PMP-protected sulfondiimines has been found, which provides access to
<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.