scholarly journals Synthesis of substituted benzooxaborinin-1-ols via palladium-catalysed cyclisation of alkenyl- and alkynyl-boronic acids

2016 ◽  
Vol 14 (34) ◽  
pp. 8039-8043 ◽  
Author(s):  
Laure Benhamou ◽  
Daniel W. Walker ◽  
Dejan-Krešimir Bučar ◽  
Abil E. Aliev ◽  
Tom D. Sheppard
Keyword(s):  
Boronic Acids ◽  
Oxidative Cyclisation

Substituted benzooxaborinin-1-ols can be preparedviapalladium-catalysed oxidative cyclisation of boronic acids bearing a pendent alkene or alkyne group.

Dearomative [4 + 2] annulations between 3-nitroindoles and enals through oxidative N-heterocyclic carbene catalysis

2020 ◽  
Vol 7 (23) ◽  
pp. 3862-3867
Author(s):  
Hua Huang ◽  
Qing-Zhu Li ◽  
Yan-Qing Liu ◽  
Hai-Jun Leng ◽  
Peng Xiang ◽  
...  
Keyword(s):  
Oxidative Cyclisation

A novel intermolecular dearomative [4 + 2] annulation of 3-nitroindoles and enals under oxidative N-heterocyclic carbene catalysis has been developed. This protocol was also suitable for the oxidative cyclisation of 2-nitrobenzothiophenes with enals.

A Mild and Simple Method for Making MIDA Boronates

2020 ◽  
Author(s):  
Aidan Kelly ◽  
Peng-Jui (Ruby) Chen ◽  
Jenna Klubnick ◽  
Daniel J. Blair ◽  
Martin D. Burke
Keyword(s):  
Organic Synthesis ◽  
Boronic Acids ◽  
Simple Method ◽  
Direct Preparation ◽  
Synthesis Procedure ◽  
Harsh Conditions

<div> <div> <div> <p>Existing methods for making MIDA boronates require harsh conditions and complex procedures to achieve dehydration. Here we disclose that a pre-dried form of MIDA, MIDA anhydride, acts as both a source of the MIDA ligand and an in situ desiccant to enable a mild and simple MIDA boronate synthesis procedure. This method expands the range of sensitive boronic acids that can be converted into their MIDA boronate counterparts. Further utilizing unique properties of MIDA boronates, we have developed a MIDA Boronate Maker Kit which enables the direct preparation and purification of MIDA boronates from boronic acids using only heating and centrifuge equipment that is widely available in labs that do not specialize in organic synthesis. </p> </div> </div> </div>

Neoglycopeptide Synthesis by Suzuki-Miyaura Couplings between Glycosyl Aryl Boronic Acids and Iodopeptides

2014 ◽  
Vol 21 (10) ◽  
pp. 1004-1010
Author(s):  
Guohua Chen ◽  
Xiangying Gu ◽  
Lin Chen ◽  
Xin Wang ◽  
Yue-Lei Chen ◽  
...  
Keyword(s):  
Boronic Acids

The Merger of CF3SO2Na and Palladium Catalysis to Enable Decarboxylative Cross-Coupling for the Synthesis of Aromatic Ketones under Room Temperature

2021 ◽  
Author(s):  
Pan Xie ◽  
Cheng Xue ◽  
Cancan Wang ◽  
Dongdong Du ◽  
Sanshan Shi
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Palladium Catalysis ◽  
Cross Coupling ◽  
Boronic Acids ◽  
Aromatic Ketones ◽  
Aryl Ketones ◽  
Oxocarboxylic Acids

A CF3SO2Na/Pd(OAc)2 co-catalyzed strategy is developed to produce aryl ketones via visible-light-induced decarboxylative cross-coupling of α-oxocarboxylic acids and aryl boronic acids. This process was perfomed under air at room temperature,...

Dual Roles of TBHP Enabled Regioselective Hydroetherification of (Trifluoromethyl)alkenes with Boronic Acids: Access to α-Trifluoromethyl β-Aryloxy Tertiary Alcohols

Synthesis ◽  
2021 ◽  
Author(s):  
Hengyuan Li ◽  
Chuanle Zhu
Keyword(s):  
Boronic Acids ◽  
Dual Roles ◽  
Tertiary Alcohols ◽  
High Yields

The three-starting materials four-component reaction of (trifluoromethyl)alkenes, TBHP, and boronic acids is reported, delivering various useful α-trifluoromethyl-β-aryloxy tertiary alcohols in high yields and in an exclusively regioselective hydroetherification manner. TBHP serves as both the oxidants and the nucleophiles in this reaction, as well as the O-source of the products.

Copper-catalysed direct difluoromethylselenolation of aryl boronic acids with Se-(difluoromethyl) 4-methylbenzenesulfonoselenoate

2021 ◽  
Vol 68 ◽  
pp. 152897
Author(s):  
Kui Lu ◽  
Xiaolan Xi ◽  
Ting Zhou ◽  
Lingyu Lei ◽  
Quan Li ◽  
...  
Keyword(s):  
Boronic Acids

Unlocking the Accessibility of Alkyl Radicals from Boronic Acids through Solvent-Assisted Organophotoredox Activation

ACS Catalysis ◽  
2021 ◽  
Vol 11 (17) ◽  
pp. 10862-10870 ◽  
Author(s):  
Prabhat Ranjan ◽  
Serena Pillitteri ◽  
Guglielmo Coppola ◽  
Monica Oliva ◽  
Erik V. Van der Eycken ◽  
...  
Keyword(s):  
Boronic Acids ◽  
Alkyl Radicals
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