ChemInform Abstract: Catalyst-Free Suzuki-Type Coupling of Allylic Bromides with Arylboronic Acids.

ChemInform ◽  
2012 ◽  
Vol 43 (22) ◽  
pp. no-no
Author(s):  
Alberto Scrivanti ◽  
Valentina Beghetto ◽  
Matteo Bertoldini ◽  
Ugo Matteoli
Keyword(s):  
Arylboronic Acids ◽  
Catalyst Free ◽  
Type Coupling

Catalyst-Free Suzuki-Type Coupling of Allylic Bromides with Arylboronic Acids

2011 ◽  
Vol 2012 (2) ◽  
pp. 264-268 ◽  
Author(s):  
Alberto Scrivanti ◽  
Valentina Beghetto ◽  
Matteo Bertoldini ◽  
Ugo Matteoli
Keyword(s):  
Arylboronic Acids ◽  
Catalyst Free ◽  
Type Coupling

Light Directs Monomer Coordination in Catalyst-Free Grignard Photopolymerization

2021 ◽  
Author(s):  
Eliot Woods ◽  
Alexandra Berl ◽  
Leanna Kantt ◽  
Michael Wasielewski ◽  
Brandon E. Haines ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Radical Anion ◽  
Elevated Temperatures ◽  
Spectroscopic Studies ◽  
Computational Investigation ◽  
Catalyst Free ◽  
Active Layers ◽  
End Groups ◽  
Type Coupling

π-Conjugated polymers can serve as active layers in flexible and lightweight electronics, and are conventionally synthesized by transition-metal-mediated polycondensation at elevated temperatures. We recently reported a photopolymerization of electron-deficient heteroaryl Grignard monomers that enables the catalyst-free synthesis of n-type π-conjugated polymers. Herein we provide an experimental and computational investigation of the mechanism of this photopolymerization. Spectroscopic studies performed <i>in situ</i> and after quenching reveal that the propagating species is a radical anion with halide end groups. DFT calculations for model oligomers suggest a Mg-templated S<sub>RN</sub>1-type coupling, in which Grignard monomer coordination to the radical anion chain avoids the formation of free sp<sup>2</sup> radicals and enables C–C bond formation with very low barriers. We find that light plays an unusual role in the reaction, photoexciting the radical anion chain to shift electron density to the termini and thus favor productive monomer binding.

scholarly journals Catalyst- and solvent-free ipso-hydroxylation of arylboronic acids to phenols

RSC Advances ◽  
2019 ◽  
Vol 9 (59) ◽  
pp. 34529-34534 ◽  
Author(s):  
Xiufang Yang ◽  
Xulu Jiang ◽  
Weitao Wang ◽  
Qi Yang ◽  
Yangmin Ma ◽  
...  
Keyword(s):  
Solvent Free ◽  
Sodium Perborate ◽  
Free Condition ◽  
Arylboronic Acids ◽  
Catalyst Free ◽  
Solvent Free Condition

A catalyst-free method for the hydroxylation of arylboronic acids to form the corresponding phenols with sodium perborate as the oxidant was developed using water as the solvent or solvent free condition.

Nickel-catalyzed fluoroethylation of arylboronic acids via Suzuki-type coupling

2019 ◽  
Vol 6 (9) ◽  
pp. 1463-1470 ◽  
Author(s):  
Yi Yang ◽  
Junjie Cai ◽  
Gen Luo ◽  
Yan Jiang ◽  
Yumei Su ◽  
...  
Keyword(s):  
Arylboronic Acids ◽  
Economic Method ◽  
Type Coupling

A new and step-economic method for the synthesis of homobenzylic fluorides through nickel-catalyzed Suzuki-type fluoroethylation coupling is developed.

scholarly journals Decarboxylative Suzuki–Miyaura coupling of (hetero)aromatic carboxylic acids using iodine as the terminal oxidant

2019 ◽  
Vol 55 (45) ◽  
pp. 6445-6448 ◽  
Author(s):  
Jacob M. Quibell ◽  
Guojian Duan ◽  
Gregory J. P. Perry ◽  
Igor Larrosa
Keyword(s):  
Carboxylic Acids ◽  
Aromatic Carboxylic Acids ◽  
Arylboronic Acids ◽  
Type Coupling

A novel methodology for the decarboxylative Suzuki–Miyaura-type coupling of carboxylic acids with arylboronic acids has been developed.

RETRACTED: Metal catalyst-free Suzuki-type coupling reaction in water

Tetrahedron ◽  
2006 ◽  
Vol 62 (24) ◽  
pp. 5603-5607 ◽  
Author(s):  
Jie Yan ◽  
Hongwei Jin ◽  
Shang Shan
Keyword(s):  
Coupling Reaction ◽  
Metal Catalyst ◽  
Catalyst Free ◽  
Type Coupling ◽  
Reaction In Water

ChemInform Abstract: Ligand-Free Copper(I)-Catalyzed Sonogashira-Type Coupling of Arylboronic Acids with Terminal Alkynes.

ChemInform ◽  
2009 ◽  
Vol 40 (48) ◽  
Author(s):  
Changduo Pan ◽  
Fang Luo ◽  
Wenhui Wang ◽  
Zhishi Ye ◽  
Jiang Cheng
Keyword(s):  
Terminal Alkynes ◽  
Arylboronic Acids ◽  
Ligand Free ◽  
Type Coupling
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