Cascade Multicomponent Assemblies Involving 1,3-Enynes via Auto-Tandem Palladium Catalysis
作者:Ze-Liang He、Yi Zhang、Zhi-Chao Chen、Wei Du、Ying-Chun Chen
DOI:10.1021/acs.orglett.2c02544
日期:2022.9.2
Here we report a three-component auto-tandem reaction of 1,3-enyne-tethered carbonyls, organoboronic reagents, and suitable nucleophiles catalyzed by palladium, proceeding through consecutive intramolecular vinylogous addition, Suzuki coupling, and allylic alkylation. This process exhibited high chemo- and regioselectivity with 1,3,4-trifunctionalization of the 1,3-enyne motif, and a wide range of
在这里,我们报告了由钯催化的 1,3-烯炔束缚羰基、有机硼试剂和合适的亲核试剂的三组分自串联反应,通过连续的分子内乙烯基加成、Suzuki 偶联和烯丙基烷基化进行。该过程表现出高化学和区域选择性,1,3-烯炔基序的 1,3,4-三官能化,以及广泛的 2 H-色烯、1,2-二氢喹啉、苯并[ b ]氧杂环庚烯、1,7 -环状吲哚和其他框架以公平至良好的产率和E / Z选择性有效构建。