Silica–sulfuric acid and alumina–sulfuric acid: versatile supported Brønsted acid catalysts
A Pramanik, S Bhar - New Journal of Chemistry, 2021 - pubs.rsc.org
–SO3H functionalized silica and alumina have emerged as efficient and eco-compatible
heterogeneous solid acid catalysts for the construction of various important molecular …
heterogeneous solid acid catalysts for the construction of various important molecular …
Silica sulfuric acid: an efficient and reusable catalyst for the one-pot synthesis of 3, 4-dihydropyrimidin-2 (1H)-ones
Silica sulfuric acid efficiently catalyzes the three-component Biginelli reaction between an
aldehyde, a β-dicarbonyl compound and urea or thiourea in refluxing ethanol to afford the …
aldehyde, a β-dicarbonyl compound and urea or thiourea in refluxing ethanol to afford the …
Silica sulfuric acid and silica chloride as efficient reagents for organic reactions
Silica sulfuric acid and silica chloride, two silica based solid acids have been used for
various organic functional group transformations either as reagent or as catalyst. All …
various organic functional group transformations either as reagent or as catalyst. All …
Selective synthesis of 2-aryl-1-arylmethyl-1H-1, 3-benzimidazoles in water at ambient temperature
A highly selective synthesis of 2-aryl-1-arylmethyl-1H-1, 3-benzimidazoles from the reaction
of o-phenylenediamines and aromatic aldehydes in the presence of silica sulfuric acid is …
of o-phenylenediamines and aromatic aldehydes in the presence of silica sulfuric acid is …
Sulfuric acid immobilized on silica: an excellent catalyst for Fischer type glycosylation
B Roy, B Mukhopadhyay - Tetrahedron Letters, 2007 - Elsevier
Fischer glycosylation, a widely used technique for the preparation of simple alkyl or aryl
glycosides, has a few drawbacks including the use of strong mineral acids, excess alcohols …
glycosides, has a few drawbacks including the use of strong mineral acids, excess alcohols …
A novel method for the one-pot three-component synthesis of 2, 3-dihydroquinazolin-4 (1H)-ones
One-pot three-component condensation of isatoic anhydride with primary amines or
ammonium carbonate and aromatic aldehydes in refluxing ethanol in the presence of …
ammonium carbonate and aromatic aldehydes in refluxing ethanol in the presence of …
A new approach to the facile synthesis of mono-and disubstituted quinazolin-4 (3H)-ones under solvent-free conditions
Quinazolin-4 (3H)-one derivatives were synthesized successfully via a one-pot, three
component reaction of isatoic anhydride and an orthoester with ammonium acetate or a …
component reaction of isatoic anhydride and an orthoester with ammonium acetate or a …
Nano-titania sulfuric acid-promoted synthesis of tetrahydrobenzo[b]pyran and 1,4-dihydropyrano[2,3-c]pyrazole derivatives under ultrasound irradiation
D Azarifar, SM Khatami, MA Zolfigol… - Journal of the Iranian …, 2014 - Springer
An efficient and convenient procedure has been described for one-pot synthesis of
tetrahydrobenzo [b] pyran and 1, 4-dihydropyrano [2, 3-c] pyrazole derivatives in the …
tetrahydrobenzo [b] pyran and 1, 4-dihydropyrano [2, 3-c] pyrazole derivatives in the …
Solvent‐free one‐pot synthesis of amidoalkyl naphthols catalyzed by silica sulfuric acid
G Srihari, M Nagaraju, MM Murthy - Helvetica Chimica Acta, 2007 - Wiley Online Library
An efficient, inexpensive, and mild method for the synthesis of amidoalkyl naphthols,
catalyzed by 'silica sulfuric acid'(SSA), was elaborated under solvent‐free conditions at room …
catalyzed by 'silica sulfuric acid'(SSA), was elaborated under solvent‐free conditions at room …
A modified procedure for the Dakin–West reaction: an efficient and convenient method for a one-pot synthesis of β-acetamido ketones using silica sulfuric acid as …
MM Khodaei, AR Khosropour, P Fattahpour - Tetrahedron letters, 2005 - Elsevier
A modified procedure for the Dakin–West reaction: an efficient and convenient method for a
one-pot synthesis of β-acetamido ketones using silica sulfuric acid as catalyst - ScienceDirect Skip …
one-pot synthesis of β-acetamido ketones using silica sulfuric acid as catalyst - ScienceDirect Skip …