scholarly journals Cu2(BDC)2(BPY)–MOF: an efficient and reusable heterogeneous catalyst for the aerobic Chan–Lam coupling prepared via ball-milling strategy

RSC Advances ◽  
2017 ◽  
Vol 7 (73) ◽  
pp. 46022-46027 ◽  
Author(s):  
Armaqan Khosravi ◽  
Javad Mokhtari ◽  
Mohammad Reza Naimi-Jamal ◽  
Sharareh Tahmasebi ◽  
Leila Panahi
Keyword(s):  
Ball Milling ◽  
Heterogeneous Catalyst ◽  
Boronic Acid ◽  
Aromatic Amines ◽  
Cross Coupling ◽  
Phenyl Boronic Acid

Nanoporous Cu2(BDC)2(BPY)–MOF was used as efficient and reusable heterogeneous catalyst to effect the aerobic cross-coupling of aromatic amines and phenyl boronic acid (Chan–Lam Coupling).

scholarly journals Ni/Pd-catalyzed Suzuki–Miyaura cross-coupling of alcohols and aldehydes and C–N cross-coupling of nitro and amines via domino redox reactions: base-free, hydride acceptor-free

RSC Advances ◽  
2020 ◽  
Vol 10 (72) ◽  
pp. 43962-43974
Author(s):  
Milad Kazemnejadi ◽  
Rebin Omer Ahmed ◽  
Boshra Mahmoudi
Keyword(s):  
Catalytic System ◽  
Boronic Acid ◽  
Redox Reactions ◽  
Cross Coupling ◽  
Nitro Compounds ◽  
Aryl Halides ◽  
Benzyl Alcohols ◽  
Phenyl Boronic Acid

A new Ni/Pd bimetallic multifunctional catalytic system has been developed for the domino Suzuki–Miyaura cross-coupling of benzyl alcohols with phenyl boronic acid and domino reduction C–N cross-coupling of the nitro compounds with aryl halides.

Copper nanoparticles supported on highly nitrogen-rich covalent organic polymers as heterogeneous catalysts for the ipso-hydroxylation of phenyl boronic acid to phenol

2020 ◽  
Vol 44 (16) ◽  
pp. 6222-6231
Author(s):  
Velu Sadhasivam ◽  
Muniyasamy Harikrishnan ◽  
Ganesan Elamathi ◽  
Rajendran Balasaravanan ◽  
Sepperumal Murugesan ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Heterogeneous Catalyst ◽  
Copper Nanoparticles ◽  
Boronic Acid ◽  
Heterogeneous Catalysts ◽  
Phenylboronic Acid ◽  
Organic Polymers ◽  
Atmospheric Conditions ◽  
Phenyl Boronic Acid

Here, we report the synthesis of highly nitrogen-rich covalent organic polymers as a solid heterogeneous catalyst for the oxidation of phenylboronic acid under atmospheric conditions in an aqueous medium to achieve very good yields up to 99%.

Arylboronic Acids in Self-condensation of Glucosamines Forming Deoxyfructosazine, Catalysts or Reagents?

2019 ◽  
Author(s):  
Meifeng Wang ◽  
Gan Zhu ◽  
Yiqun Li ◽  
Liuqun Gu
Keyword(s):  
Molecular Recognition ◽  
Boric Acid ◽  
Boronic Acid ◽  
Catalytic Mechanism ◽  
Organic Transformations ◽  
Food Industries ◽  
Arylboronic Acids ◽  
Excess Amount ◽  
Phenyl Boronic Acid ◽  
Boron Acid

Arylboronic acids were widely used as efficient catalysts in direct amide formation and other organic transformations. Surprisingly, reports on their use as catalysts in carbohydrates synthesis are very rare even though boron acid-diol complexation was extensively investigated in molecular recognition for saccharides and so on. Here we developed an efficient arylboronic acids catalyzed dimerization of glucosamines forming deoxyfructosazine which is important compound in pharmaceutical and food industries, against a commonly held belief that excess amount of phenyl boronic acid (or boric acid) is a must. A catalytic mechanism was also proposed and arylboronic acids instead of their boronates was identified as catalysts.

Catalyst- and solvent-free Csp2-H functionalization of 4-hydroxycoumarins via C-3 dehydrogenative aza-coupling under ball-milling

2021 ◽  
Author(s):  
Goutam Brahmachari ◽  
Indrajit Karmakar ◽  
Pintu Karmakar
Keyword(s):  
Ball Milling ◽  
Aromatic Amines ◽  
Solvent Free ◽  
One Pot ◽  
Biologically Relevant ◽  
Tert Butyl ◽  
Three Component Reaction ◽  
Primary Aromatic Amines

A one-pot procedure for the synthesis of biologically relevant coumarin-hydrazones by a three-component reaction between 4-hydrocoumarins, primary aromatic amines and tert-butyl nitrite under ball-milling in the absence of any catalyst/additive...

Novel Petasis Boronic Acid—Mannich Reactions with Tertiary Aromatic Amines.

ChemInform ◽  
2003 ◽  
Vol 34 (46) ◽  
Author(s):  
Dinabandhu Naskar ◽  
Amrita Roy ◽  
William L. Seibel ◽  
David E. Portlock
Keyword(s):  
Boronic Acid ◽  
Aromatic Amines ◽  
Mannich Reactions

scholarly journals Analysis of glycoproteins by SDS-PAGE with methacrylamido phenyl boronic acid

2014 ◽  
Vol 58 (2) ◽  
pp. 33-35 ◽  
Author(s):  
Yuichi Aikyo ◽  
Masamichi Oh-Ishi
Keyword(s):  
Boronic Acid ◽  
Sds Page ◽  
Phenyl Boronic Acid

scholarly journals A New Heterogeneous Catalyst Obtained via Supramolecular Decoration of Graphene with a Pd2+ Azamacrocyclic Complex

Molecules ◽  
2019 ◽  
Vol 24 (15) ◽  
pp. 2714 ◽  
Author(s):  
Matteo Savastano ◽  
Paloma Arranz-Mascarós ◽  
Maria Paz Clares ◽  
Rafael Cuesta ◽  
Maria Luz Godino-Salido ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Self Assembly ◽  
Room Temperature ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Assembly Process ◽  
Efficient Catalyst ◽  
Mild Conditions ◽  
Cross Coupling Reaction ◽  
Green Procedure

A new G-(H2L)-Pd heterogeneous catalyst has been prepared via a self-assembly process consisting in the spontaneous adsorption, in water at room temperature, of a macrocyclic H2L ligand on graphene (G) (G + H2L = G-(H2L)), followed by decoration of the macrocycle with Pd2+ ions (G-(H2L) + Pd2+ = G-(H2L)-Pd) under the same mild conditions. This supramolecular approach is a sustainable (green) procedure that preserves the special characteristics of graphene and furnishes an efficient catalyst for the Cu-free Sonogashira cross coupling reaction between iodobenzene and phenylacetylene. Indeed, G-(H2L)-Pd shows an excellent conversion (90%) of reactants into diphenylacetylene under mild conditions (50 °C, water, aerobic atmosphere, 14 h). The catalyst proved to be reusable for at least four cycles, although decreasing yields down to 50% were observed.

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