Palladium-Catalyzed Sequential Vinylic C–H Arylation/Amination of 2-Vinylanilines with Aryl boronic Acids: Access to 2-Arylindoles
作者:Ruixia Yu、Dejun Li、Fanlong Zeng
DOI:10.1021/acs.joc.7b02728
日期:2018.1.5
A palladium-catalyzed selective and successive vinylic C–H arylation/amination of 2-vinylanilines with arylboronic acids to generate indoles has been developed. This procedure represents a straightforward and practical approach to valuable multifunctionalized indoles.
attractive approach to valuable yet synthetically challenging benzo[b]azepines was established via palladium(II)/Lewis acid cocatalyzed oxidative [5 + 2] annulation of readily available 2-alkenylanilines and propargylic esters. The protocol features mild reaction conditions and good functional group tolerance, constituting an array of benzo[b]azepines in yields of 30–75%.
通过钯(II)/路易斯酸共催化易得的2-烯基苯胺和炔丙基酯的氧化[5 + 2]环氧化反应,建立了一种有价值的但对合成具有挑战性的苯并[ b ]氮杂苯的有吸引力的方法。该方案具有温和的反应条件和良好的官能团耐受性,构成了一系列苯并[ b ]氮杂s,产率为30–75%。
Palladium-Catalyzed Domino Alkenylation/Amination/Pyridination Reactions of 2-Vinylanilines with Alkynes: Access to Cyclopentaquinolines
作者:Dejun Li、Fanlong Zeng
DOI:10.1021/acs.orglett.7b03164
日期:2017.12.15
A novel domino oxidative annulation of 2-vinylanilines with internal alkynes was developed to constitute a rare class of cyclopentaquinoline derivatives. This transformation encompasses four σ bonds formation, one quaternary carbon center construction, and pyridination steps in one pot under identical conditions, which fascinatingly increases the molecular complexity from easily available starting
Palladium-catalyzedoxidative annulation of ortho-alkenylanilines and allenes to constitute valuable, but synthetically challenging, benzo[b]azepines has been developed. The procedure, involving the cleavage of the terminal C(sp2)–H bond of the vinyl moiety and the participation of allenes as two-carbon cycloaddition partner, is attractive in terms of assembly efficiency and environmental friendliness
钯催化的邻链烯基苯胺和烯丙基的氧化环化反应构成了有价值的,但具有合成挑战性的苯并[ b ] ze子。该程序涉及到乙烯基部分末端C(sp 2)-H键的裂解和丙二烯作为二碳环加成伙伴的参与,在组装效率和环境友好性方面具有吸引力。该转化具有温和的反应条件和良好的官能团耐受性,从而导致各种苯并[ b ]氮杂以良好至极佳的收率获得。
Aryl Sulfonamides
申请人:Ungashe Solomon
公开号:US20080161345A1
公开(公告)日:2008-07-03
The present invention relates to compounds that modulate various chemokine receptors. These compounds are useful for treating inflammatory and immune diseases.