Efficient rearrangement of epoxides catalyzed by a mixed-valent iron trifluoroacetate [Fe3O (O2CCF3) 6 (H2O) 3]

E Ertürk, M Göllü, AS Demir - Tetrahedron, 2010 - Elsevier
The mixed-valent oxo-centered triiron (III, III, II) trifluoroacetate complex [Fe2IIIFeIIO
(O2CCF3) 6 (H2O) 3] was prepared by reacting anhydrous iron (III) chloride with boiling …

Catalytic carbon–sulfur bond formation by amphoteric vanadyl triflate: Exploring with thia-Michael addition, thioacetalization, and transthioacetalization reactions

CT Chen, YD Lin, CY Liu - Tetrahedron, 2009 - Elsevier
A series of thiols have been examined as protic nucleophiles for Michael-type additions to α,
β-unsaturated carbonyls as well as double nucleophilic condensations with aldehydes …

Fe (HSO4) 3 as an inexpensive, eco-friendly, heterogeneous and reusable catalyst for acetal/ketal formation and their facile regeneration

H Eshghi, M Rahimizadeh, S Saberi - Catalysis Communications, 2008 - Elsevier
Fe (HSO4) 3 has been used as an efficient and recyclable catalyst for acetalization and
ketalization of carbonyl compounds with neopentyl glycol. The advantage of this method is …

Green synthesis of acetals/ketals: Efficient solvent-free process for the carbonyl/hydroxyl group protection catalyzed by SBA-15 materials

E Pérez-Mayoral, RM Martín-Aranda… - Topics in …, 2009 - Springer
Acetals/ketals derived from the aldehydes/ketones are easily prepared under solventless
conditions. The process is heterogeneously catalysed using acid or basic mesoporous …

Silica-Gel Supported Sulfamic Acid (SA/SiO2) as an Efficient and Reusable Catalyst for Conversion of Ketones into Oxathioacetals and Dithioacetals

T Aoyama, T Suzuki, T Nagaoka, T Takido… - Synthetic …, 2013 - Taylor & Francis
A simple and efficient method for the conversion of carbonyl compounds to oxathioacetals
and dithioacetals using SA/SiO2 as an acid catalyst has been achieved. SA/SiO2 is easily …

Silica sulfuric acid: a versatile reagent for oxathioacetalyzation of carbonyl compounds and deprotection of 1, 3-oxathiolanes

F Shirini, P Sadeghzadeh, M Abedini - Chinese Chemical Letters, 2009 - Elsevier
Oxathioacetalyzation of carbonyl compounds with 2-mercaptoethanol and deprotection of
the obtained 1, 3-oxathiolanes is easily performed in the presence of silica sulfuric acid …

Crossed-aldol condensation of cycloalkanones with aromatic aldehydes catalyzed by copper (II) trifluoroacetate

D Song, Y Chen, R Wang, C Liu, H Jiang… - Preparative …, 2009 - Taylor & Francis
A simple and solvent-free procedure to synthesize α, α′-bis (substituted benzylidene)
cycloalkanones, catalyzed by copper (II) trifluoroacetate through crossed-aldol condensation …

Iron (III) trifluoroacetate [Fe (O2CCF3) 3] catalyzed epoxide opening with amines

E Erturk, AS Demir - 2008 - open.metu.edu.tr
Non-hygroscopic, non-toxic, and readily available iron (III) trifluoroacetate [Fe (O2CCF3)(3)]
was found to be a highly regioselective catalyst for the ring opening of a wide variety of …

Sulfonic acid-functionalized ordered nanoporous Na+-montmorillonite as an efficient, eco-benign, and water-tolerant nanoreactor for chemoselective …

F Shirini, SV Atghia, M Mamaghani - International Nano Letters, 2013 - Springer
Sulfonic acid-functionalized ordered nanoporous sodium montmorillonite has been found to
be a mild and efficient solid acid catalyst for the chemoselective protection of a variety of …

Modificación química de carbones activados con ácidos minerales

D Omenat Morán - 2016 - dehesa.unex.es
Se han preparado carbón vegetal y carbones activados a partir de médula de kenaf
(Hibiscus cannabinus L.). Los carbones activados han sido después químicamente …