scholarly journals Esterification of camphene over heterogeneous heteropoly acid catalysts: Synthesis of isobornyl carboxylates

2011 ◽  
Vol 409-410 ◽  
pp. 82-86 ◽  
Author(s):  
Augusto L.P. de Meireles ◽  
Kelly A. da Silva Rocha ◽  
Ivan V. Kozhevnikov ◽  
Elena V. Gusevskaya
Keyword(s):  
Heteropoly Acid ◽  
Acid Catalysts

scholarly journals New green perspective to dihydropyridines synthesis utilizing modified heteropoly acid catalysts

2021 ◽  
Author(s):  
Mohamed Mokhtar ◽  
Tamer S. Saleh ◽  
Katabathini Narasimharao ◽  
Ebtesam Al-Mutairi
Keyword(s):  
Heteropoly Acid ◽  
Acid Catalysts

One-Pot Synthesis of 1-Benzoylpyrene over Heteropoly Acid Catalysts

2012 ◽  
Vol 560-561 ◽  
pp. 294-299
Author(s):  
Xiao Qing Lu ◽  
Min Xing ◽  
Ai Xia Pan ◽  
Yin Yin Wu ◽  
Ji Min Xie ◽  
...  
Keyword(s):  
Benzoyl Chloride ◽  
Heteropoly Acid ◽  
Active Catalyst ◽  
Catalytic Synthesis ◽  
Acid Catalysts ◽  
Acylation Reaction ◽  
One Pot ◽  
Experimental Parameters ◽  
Product Separation ◽  
Ft Ir

A novel one-pot catalytic synthesis of 1-benzoylpyrene through acylation of pyrene with benzoyl chloride catalyzed by various Keggin type heteropoly acids (salts) was investigated. Pure 1-benzoylpyrene was obtained and the structure of 1-benzoylpyrene was identified by GC/MS, FT-IR and 1H NMR spectra. H3PW12O40 (PW) was found to be the most active catalyst in the acylation. The yield and the selectivity of 1-benzoylpyrene were up to 97.6 % and 100 %, respectively. The effects of experimental parameters on the catalytic acylation reaction and the recycling performance of PW catalyst were studied. PW catalyst shows well catalytic activity after running for 5 times. The facile product separation and the recycling performance of PW catalyst is expected to contribute to the development of clean and environmentally friendly strategy for the synthesis of 1-benzoylpyrene.

Synthesis of Butyl Levulinate Based on α-Angelica Lactone in the Presence of Easily Separable Heteropoly Acid Catalysts

ChemSusChem ◽  
2017 ◽  
Vol 10 (7) ◽  
pp. 1494-1500 ◽  
Author(s):  
Xiaohu Yi ◽  
Mohammad G. Al-Shaal ◽  
Wirawan Ciptonugroho ◽  
Irina Delidovich ◽  
Xiaohong Wang ◽  
...  
Keyword(s):  
Heteropoly Acid ◽  
Acid Catalysts ◽  
Angelica Lactone

Heteropoly acid catalysts for the synthesis of fragrance compounds from bio-renewables: acetylation of nopol and terpenic alcohols

RSC Advances ◽  
2016 ◽  
Vol 6 (49) ◽  
pp. 43217-43222 ◽  
Author(s):  
Vinicius V. Costa ◽  
Kelly A. da Silva Rocha ◽  
Luiz C. A. Oliveira ◽  
Elena F. Kozhevnikova ◽  
Ivan V. Kozhevnikov ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Heteropoly Acid ◽  
Solvent Free ◽  
Acid Catalysts ◽  
Green Solvent ◽  
Ambient Conditions ◽  
Terpenic Alcohols ◽  
Commercially Important ◽  
Catalytic Processes ◽  
Fragrance Compounds

Commercially important esters are obtained from biomass-based alcoholsviagreen solvent-free catalytic processes under ambient conditions using a simple heterogeneous catalyst.

scholarly journals Bulk and Activated Carbon-Supported Tungstophosphoric Acid as Recyclable and Green Catalyst for One-Pot Synthesis ofβ-Acetamido Ketones and Esters

2011 ◽  
Vol 8 (2) ◽  
pp. 689-696 ◽  
Author(s):  
Fatemeh F. Bamoharram ◽  
Ali Ahmadpour ◽  
Majid M. Heravi ◽  
Mohammad J. Sane Charkhi
Keyword(s):  
Activated Carbon ◽  
Heteropoly Acid ◽  
Tungstophosphoric Acid ◽  
Acid Catalysts ◽  
One Pot ◽  
Green Catalyst ◽  
One Pot Synthesis

A rapid and efficient one-pot method for the synthesis ofβ-acetamido ketones/esters has been developed in the presence of bulk tungstophosphoric acid and its supported forms on activated carbon as recyclable and eco-friendly catalysts under refluxing conditions. Supported tungstophosphoric acid catalysts containing the same amount of heteropoly acid yielded much higher conversion than bulk form.

Heteropoly Acid/Carbon Nanotube Hybrid Materials as Efficient Solid-Acid Catalysts

ChemCatChem ◽  
2014 ◽  
Vol 6 (9) ◽  
pp. 2613-2620 ◽  
Author(s):  
Wei Qi ◽  
Wei Liu ◽  
Songyun Liu ◽  
Bingsen Zhang ◽  
Xianmo Gu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Hybrid Materials ◽  
Heteropoly Acid ◽  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts

One-pot synthesis of diisobornyl ether from camphene using heteropoly acid catalysts

2006 ◽  
Vol 243 (2) ◽  
pp. 258-263 ◽  
Author(s):  
Enio José Leão Lana ◽  
Kelly A. da Silva Rocha ◽  
Ivan V. Kozhevnikov ◽  
Elena V. Gusevskaya
Keyword(s):  
Heteropoly Acid ◽  
Acid Catalysts ◽  
One Pot ◽  
One Pot Synthesis

One-pot synthesis of 1-acetylpyrene over supported phosphotungstic heteropoly acid catalysts

2012 ◽  
Vol 108 (2) ◽  
pp. 531-544 ◽  
Author(s):  
Min-Qiang He ◽  
Ai-Xia Pan ◽  
Ji-Min Xie ◽  
De-Li Jiang ◽  
Xin-Hua Yuan ◽  
...  
Keyword(s):  
Heteropoly Acid ◽  
Acid Catalysts ◽  
One Pot ◽  
One Pot Synthesis
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