5-(Diarylimino)- and 5-(sulfoximido)dibenzothiophenium triflates: syntheses and applications as electrophilic aminating reagents
作者:Zhen Li、Gonela Vijaykumar、Xiangdong Li、Christopher Golz、Manuel Alcarazo
DOI:10.1039/d1ob00285f
日期:——
Specifically, the uncatalyzed imination of thiols or sulfinates proceeds with good yields, while under the mild reaction conditions offered by visible light photoredox catalysis, the radical amination of hydrazones or the sulfoximidation of benzylic, allylic and propargylic C–H bonds takes place satisfactorily.
报道了分别由二芳基嘧啶或磺胺嘧啶一锅合成定义明确的5-(二芳基氨基)和5-(磺基亚氨基)二苯并噻吩三氟甲磺酸盐,并通过X射线晶体学阐明了这些化合物的一系列结构。与它们的高价I(III)类似物类似,这些化合物的亚氨基和亚磺酰亚胺基可选择性转移到有机底物上。特别地,未催化的硫醇或亚磺酸盐的胺化反应以良好的收率进行,而在可见光氧化还原催化提供的温和的反应条件下,的自由基胺化或苄基,烯丙基和炔丙基CH键的磺酰亚胺化则令人满意。