Computational insight into the mechanism of the Pd(0)–Brønsted acid cooperatively catalysed head-to-tail dimerization of terminal alkynes

RSC Advances ◽  
2015 ◽  
Vol 5 (103) ◽  
pp. 84636-84642 ◽  
Author(s):  
Hao Zhang ◽  
Xiaoguang Bao
Keyword(s):  
Terminal Alkynes ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Mechanistic Insight ◽  
Brönsted Acid ◽  
Insight Into

The Pd(0)–Brønsted acid cooperatively catalysed head-to-tail dimerization of terminal alkynes was computationally studied to gain a mechanistic insight.

scholarly journals Covalent or Non-Covalent? A Mechanistic Insight into the Enantioselective Brønsted Acid Catalyzed Dearomatization of Indoles with Allenamides

ChemCatChem ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 2442-2449 ◽  
Author(s):  
Pietro Giacinto ◽  
Andrea Bottoni ◽  
Andrea Garelli ◽  
Gian Pietro Miscione ◽  
Marco Bandini
Keyword(s):  
Bronsted Acid ◽  
Brønsted Acid ◽  
Mechanistic Insight ◽  
Brönsted Acid ◽  
Acid Catalyzed ◽  
Insight Into

scholarly journals [1,3]/[1,4]-Sulfur atom migration in β-hydroxyalkylphosphine sulfides

2020 ◽  
Vol 16 ◽  
pp. 88-105
Author(s):  
Katarzyna Włodarczyk ◽  
Piotr Borowski ◽  
Marek Stankevič
Keyword(s):  
Dft Calculations ◽  
Lewis Acid ◽  
Sulfur Atom ◽  
Bronsted Acids ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Carbon Migration ◽  
Brönsted Acid ◽  
Atom Migration ◽  
Insight Into

β-Hydroxyalkylphosphine sulfides undergo [1,3]- or [1,4]-sulfur atom phosphorus-to-carbon migration in the presence of Lewis or Brønsted acids. The direction of sulfur atom migration depends on the type of acid used for the reaction. In the presence of a Brønsted acid, mainly [1,3]-rearrangement is observed, whereas a Lewis acid catalyzes the [1,4]-sulfur migration. To gain insight into the mechanism of these transformations, the stereochemistry of these rearrangements have been tested, along with the conduction of some control experiments and DFT calculations.

Brønsted acid-catalyzed synthesis of carbazoles from 2-substituted indoles

2014 ◽  
Vol 1 (10) ◽  
pp. 1197-1200 ◽  
Author(s):  
Qingjiang Li ◽  
Xiao-Shui Peng ◽  
Henry N. C. Wong
Keyword(s):  
Intramolecular Cyclization ◽  
Sonogashira Coupling ◽  
Terminal Alkynes ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Efficient Approach ◽  
Brönsted Acid ◽  
Acid Catalyzed

A simple and efficient approach for the synthesis of disubstituted carbazoles has been developed from o-haloanilines and terminal alkynes using a two-step strategy, namely, Sonogashira coupling and intramolecular cyclization.

Solvent-Free Acetalization of Glycerol with n-Octanal using Combined Brønsted Acid-Surfactant Catalyst

2017 ◽  
Vol 54 (1) ◽  
pp. 54-63 ◽  
Author(s):  
Xu Li ◽  
Lan Wu ◽  
Qiong Tang ◽  
Jinxiang Dong
Keyword(s):  
Solvent Free ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Brönsted Acid

Synthetic Scope of Brønsted Acid-Catalyzed Reactions of Carbonyl Compounds and Ethyl Diazoacetate

2021 ◽  
Author(s):  
Mizzanoor Rahaman ◽  
M. Shahnawaz Ali ◽  
Khorshada Jahan ◽  
Damon Hinz ◽  
Jawad Bin Belayet ◽  
...  
Keyword(s):  
Carbonyl Compounds ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Ethyl Diazoacetate ◽  
Brönsted Acid ◽  
Acid Catalyzed ◽  
Catalyzed Reactions

scholarly journals Tailoring Lewis/Brønsted acid properties of MOF nodes via hydrothermal and solvothermal synthesis: simple approach with exceptional catalytic implications

2021 ◽  
Author(s):  
Sergio Rojas-Buzo ◽  
Benjamin Bohigues ◽  
Christian W. Lopes ◽  
Débora M. Meira ◽  
Mercedes Boronat ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Active Site ◽  
Solvothermal Synthesis ◽  
Simple Approach ◽  
Organic Reactions ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Acid Properties ◽  
Brönsted Acid

The Brønsted/Lewis acid properties of Hf-MOF-808 can be tuned by simply controlling the solvent employed in its synthesis, with direct catalytic implications on the activity and selectivity of organic reactions sensitive to the active site nature.

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