Palladium-Catalyzed Cascade sp<sup>2</sup> C–H Bond Functionalizations Allowing One-Pot Access to 4-Aryl-1,2,3,4-tetrahydroquinolines from <i>N</i>-Allyl-<i>N</i>-arylsulfonamides
作者:Kedong Yuan、Jean-François Soulé、Vincent Dorcet、Henri Doucet
DOI:10.1021/acscatal.6b02586
日期:2016.12.2
palladium-catalyzed cascade reaction allowing an efficient synthesis of 4-aryl-1,2,3,4-tetrahydroquinolines from N-allyl-N-arylsulfonamides and benzenesulfonyl chlorides. In this transformation, two C(sp2)–C(sp3) bonds were formed via activation of C(sp2)–H bonds. The reaction proceeds using the easily accessible catalyst PdCl2, with Li2CO3 as inexpensive base and CuBr as additive, and tolerates a wide variety of substituents
我们已经开发了钯催化的级联反应,可以从N-烯丙基-N-芳基磺酰胺和苯磺酰氯有效合成4-芳基-1,2,3,4-四氢喹啉。在此转换中,通过激活C(sp 2)-H键形成了两个C(sp 2)-C(sp 3)键。该反应使用容易获得的催化剂PdCl 2进行,其中Li 2 CO 3为廉价的碱,CuBr为添加剂,并且在两个反应伙伴上都可以耐受多种取代基。