Perchloric acid and its salts: very powerful catalysts in organic chemistry
R Dalpozzo, G Bartoli, L Sambri, P Melchiorre - Chemical reviews, 2010 - ACS Publications
The first reported perchlorate compound was called by von Stadion “oxygenated potassium
chlorate”. 1 It was a water-insoluble residue from a mixture of potassium chlorate and …
chlorate”. 1 It was a water-insoluble residue from a mixture of potassium chlorate and …
Multi-layer functionalized poly (ionic liquid) coated magnetic nanoparticles: highly recoverable and magnetically separable Brønsted acid catalyst
A Pourjavadi, SH Hosseini, M Doulabi… - ACS …, 2012 - ACS Publications
A functionalized poly (ionic liquid) coated magnetic nanoparticle (Fe3O4@ PIL) catalyst was
successfully synthesized by polymerization of functionalized vinylimidazolium in the …
successfully synthesized by polymerization of functionalized vinylimidazolium in the …
Nano-Fe3O4-encapsulated silica particles bearing sulfonic acid groups as a magnetically separable catalyst for green synthesis of 1,1-diacetates
F Nemati, MG Afkham, A Elhampour - Green Chemistry Letters and …, 2014 - Taylor & Francis
Sulfonic acid-functionalized silica-coated nano-Fe3O4particles (Fe3O4@ SiO2–SO3H)
serve as a novel heterogeneous catalyst for the synthesis of acylals by direct condensation …
serve as a novel heterogeneous catalyst for the synthesis of acylals by direct condensation …
HClO4–SiO2 catalyzed stereoselective synthesis of β-amino ketones via a direct Mannich-type reaction
MA Bigdeli, F Nemati, GH Mahdavinia - Tetrahedron Letters, 2007 - Elsevier
The HClO4–SiO2 catalyzed three-component, one-pot Mannich reaction of ketones,
aromatic aldehydes and aromatic amines is carried out in ethanol to afford the …
aromatic aldehydes and aromatic amines is carried out in ethanol to afford the …
Silica supported perchloric acid: A mild and highly efficient heterogeneous catalyst for the synthesis of poly-substituted quinolines via Friedländer hetero-annulation
M Narasimhulu, TS Reddy, KC Mahesh… - Journal of Molecular …, 2007 - Elsevier
Silica supported perchloric acid (HClO4-SiO2) is found to be a heterogeneous recyclable
catalyst for the rapid and efficient synthesis of various poly-substituted quinolines in the …
catalyst for the rapid and efficient synthesis of various poly-substituted quinolines in the …
Sulfonated rice husk ash (RHA-SO3H): a highly powerful and efficient solid acid catalyst for the chemoselective preparation and deprotection of 1, 1-diacetates
F Shirini, M Mamaghani, M Seddighi - Catalysis Communications, 2013 - Elsevier
Rice husk ash (RHA), as a source of amorphous silica, was treated with chlorosulfonic acid
and sulfonated rice husk ash (RHA-SO3H) as a highly powerful solid acid catalyst was …
and sulfonated rice husk ash (RHA-SO3H) as a highly powerful solid acid catalyst was …
A novel multi-component reaction of indole, formaldehyde, and tertiary aromatic amines
A novel multi-component reaction of indoles, formaldehydes, and tertiary aromatic amines is
described for the synthesis of dialkylaminoarylated indoles using silica-supported perchloric …
described for the synthesis of dialkylaminoarylated indoles using silica-supported perchloric …
Silica supported perchloric acid (HClO4–SiO2): A highly efficient and reusable catalyst for the protection of hydroxyl groups using HMDS under mild and ambient …
HR Shaterian, F Shahrekipoor, M Ghashang - Journal of Molecular …, 2007 - Elsevier
Various alcohols, phenols, naphthols, and oximes were effectively converted into their
corresponding trimethylsilyl ethers with hexamethyldisilazane in the presence of solid silica …
corresponding trimethylsilyl ethers with hexamethyldisilazane in the presence of solid silica …
Silica-bonded S-sulfonic acid as a recyclable catalyst for chemoselective synthesis of 1, 1-diacetates
K Niknam, D Saberi, MN Sefat - Tetrahedron Letters, 2009 - Elsevier
A simple and efficient procedure for the preparation of silica-bonded S-sulfonic acid
(SBSSA) by reaction of 3-mercaptopropylsilica (MPS) and chlorosulfonic acid in chloroform …
(SBSSA) by reaction of 3-mercaptopropylsilica (MPS) and chlorosulfonic acid in chloroform …
CeCl3· 7H2O: an efficient and reusable catalyst for the preparation of β-acetamido carbonyl compounds by multi-component reactions (MCRs)
A convenient method for the preparation of β-acetamido carbonyl compounds is described
by multi-component reactions of aromatic aldehydes, enolizable ketones or β-keto esters …
by multi-component reactions of aromatic aldehydes, enolizable ketones or β-keto esters …