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 aryl bromides 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
提出了使用三(二亚苄基丙酮)二钯(0)[Pd 2(dba)3 ]和2-二环己基膦基-2',6'-二异丙氧基联苯(RuPhos)作为磺化二亚胺与芳基溴的N-芳基化反应的一般方法。。获得了新的苯并噻嗪,并且发现了在PMP保护的磺二亚胺中裂解对甲氧基苯基(PMP)基团的方案,这提供了难以用其他方法制备的合成上有用的NH-衍生物的途径。