Copper-Catalyzed C–N Cross-Coupling of Sulfondiimines with Boronic Acids
摘要:
The copper-catalyzed C-N cross-coupling of sulfondiimines with boronic acids has been developed. The reaction proceeds at room temperature in good to excellent yields and provides access to a variety of N,N'-disubstituted sulfondiimines, including N-(hetero)aryl sulfondiimines and the first reported N-alkenylated sulfondiimine.
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