Chemoselective and Regiospecific Suzuki Coupling on a Multisubstituted sp3-Carbon in 1,1-Diborylalkanes at Room Temperature
摘要:
The palladium-catalyzed Suzuki-Miyaura cross-coupling on a multisubstituted sp(3)-carbon in 1,1-diborylalkanes was achieved at room temperature. The generation of a monoborate intermediate by virtue of the adjacent B atom could result in the chemoselective coupling reaction under ambient conditions.
Regio- and <i>Trans</i>-Selective Ni-Catalyzed Coupling of Butadiene, Carbonyls, and Arylboronic Acids to Homoallylic Alcohols under Base-Free Conditions
作者:Yu-Qing Li、Guang Chen、Shi-Liang Shi
DOI:10.1021/acs.orglett.1c00488
日期:2021.4.2
We herein report a Ni-catalyzed three-component coupling of 1,3-butadiene, carbonylcompounds, and arylboronic acids as a general synthetic approach to 1,4-disubstituted homoallylic alcohols, an important class of compounds, which have previously not been straightforward to access. The reaction occurs efficiently using a Ni(cod)2 catalyst without any external base and ligand at ambient temperature
Rapid Access to Highly Functionalized Alkyl Boronates by NiH‐Catalyzed Remote Hydroarylation of Boron‐Containing Alkenes
作者:Yao Zhang、Bo Han、Shaolin Zhu
DOI:10.1002/anie.201907185
日期:2019.9.23
selective functionalization of relatively simple and readily accessible precursors to produce highlyfunctionalizedalkylboronates is a synthetically useful process. Herein we report a NiH-catalyzed remotehydroarylation process that can, through a synergistic combination of chain walking and subsequent cross-coupling, introduce an aryl group at the adjacent carbon atom of alkylboronates under mild