Synthesis of Amines with Pendant Boronic Esters by Borrowing Hydrogen Catalysis
摘要:
Amine alkylation reactions of alcohols have been performed in the presence of boronic ester groups to provide products which are known to have use as molecular sensors. The boronic ester moiety could be present in either the alcohol or amine starting material and was not compromised in the presence of a ruthenium catalyst.
Halogen-Bonding-Promoted Photoinduced C–X Borylation of Aryl Halide Using Phenol Derivatives
作者:Kazuki Matsuo、Eiji Yamaguchi、Akichika Itoh
DOI:10.1021/acs.joc.3c00201
日期:2023.5.5
photoinduced C–Xborylation reaction of arylhalides by forming a halogen-bonding (XB) complex using 2-naphthol as an XB acceptor. The method is chemoselective and broadly functional group tolerant and provides concise access to corresponding boronate esters. Mechanistic studies reveal that forming the XB complex between arylhalide and naphthol acts as an electron donor–acceptor complex to furnish aryl radicals