Concise Synthesis of Potassium Acyltrifluoroborates from Aldehydes through Copper(I)‐Catalyzed Borylation/Oxidation
作者:Jumpei Taguchi、Takumi Takeuchi、Rina Takahashi、Fabio Masero、Hajime Ito
DOI:10.1002/anie.201901748
日期:2019.5.27
subsequent oxidation. This synthetic route is characterized by the wide range of aldehydes accessible, favorable step economy, mild reaction conditions, and tolerance of various functionalgroups, and it enables the facile generation of a range of KATs, for example, bearing halide, sulfide, acetal, or ester moieties. Moreover, this method was applied to the three‐step synthesis of various α‐aminoacid analogues
A Reagent for the One-Step Preparation of Potassium Acyltrifluoroborates (KATs) from Aryl- and Heteroarylhalides
作者:Gábor Erős、Yo Kushida、Jeffrey W. Bode
DOI:10.1002/anie.201403931
日期:2014.7.14
design and synthesis of a new reagent for their one‐step preparation from aryl‐ and heteroarylhalides. The reagent is a stable, soluble zwitterion prepared by S‐alkylation of a novel thioformamide trifluoroboronate. The KATs are prepared by adding one equivalent of nBuLi to a mixture of the aryl halide and the reagent at −78 °C. This protocol is suitable for the preparation of KATs containing pyridines
Synthesis and chemoselective ligations of MIDA acylboronates with O-Me hydroxylamines
作者:Hidetoshi Noda、Jeffrey W. Bode
DOI:10.1039/c4sc00971a
日期:——
N-Methyliminodiacetyl (MIDA) acylboronates undergo chemoselective amide-bond forming ligations in water with O-Me hydroxylamines, including unprotected peptide substrates. These bench-stable boronates were easily prepared from potassium acyltrifluoroborates (KATs) in one step. The reactivity of MIDA acylboronates with O-alkylhydroxylamines – which are unreactive with KATs – was attributed to the nature
Synthesis and Optical Properties of <i>C</i>,<i>N</i>-Swapped Boranils Derived from Potassium Acyltrifluoroborates
作者:Satsuki Matsuura、Jumpei Taguchi、Tomohiro Seki、Hajime Ito
DOI:10.1246/bcsj.20210024
日期:2021.5.15
Novel C,O-chelated bora-heterocycles were synthesized. Reaction of potassium acyltrifluoroborates with tetrahydroquinolin-8-ol furnished C,N-swapped boranils in a single step. All five obtained borates showed photoluminescence in solid state. One of them showed yellow-to-orange reversible mechanochromic luminescence. Further derivatization afforded a B-chiral borate with an O,C,O-tridentate ligand