Formylation Of Alcohols Research Articles

Green Formylation of Alcohols Catalyzed by Magnetic Nanoparticles of the Core–Shell Fe3O4@SiO2-SO3H

The immobilized sulfonic acid on silica-layered magnetite was successfully synthesized and characterized using Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction spectroscopy, scanning electron microscopy and thermogravimetric analyses. The prepared Fe3O4@SiO2-SO3H MNPs were used as an efficient solid acidic nanocatalyst toward successful formylation of structurally diverse aliphatic and benzylic primary/secondary alcohols using formic acid under oil bath conditions (60 °C). The product, formyl esters, was obtained in 76–92% yields within 1–20 min. The sulfonated nanocatalyst was easily recovered by an external magnetic field and reused for five consecutive cycles without significant loss of its catalytic activity.

2-(Sulfooxy)propane-1,2,3-tricarboxylic acid as novel and versatile catalyst for the formylation of alcohols and amines using ethyl formate under neat conditions

Abstract 2-(Sulfooxy)propane-1,2,3-tricarboxylic acid (supported on silica gel) has been introduced as novel and green catalyst for the formylation of alcohols and amines with ethyl formate, as mild formylation agent, under neat conditions at room temperature.

Formylation and acetylation of alcohols using Amberlyst-15® as a recyclable heterogeneous catalyst

Formylation of alcohols with ethyl formate in the presence of solid acidic resin Amberlyst-15 as a catalyst was carried out. Good to excellent yields of products were obtained. The catalyst also works for the acetylation of alcohols with ethyl acetate at reflux temperature. Simple work-up, reusability, nontoxicity, and stability of the catalyst are the advantages of this work as compared to conventional protocols.

N,N′-Dibromo-N,N′–1,2-ethanediylbis(benzene sulfonamide) as an Efficient Catalyst for Acetylation and Formylation of Alcohols Under Mild Conditions

An efficient method for the acylation and formylation of alcohols and phenols by using an acylating/formylating agent (acetic anhydride and formic acid) in the presence of a catalytic amount of N,N′-dibromo-N,N′–1,2-ethanediylbis(benzene sulfonamide) under mild and solvent-free conditions at room temperature in good to excellent yields is described. The use of protic acids and metal Lewis acids is avoided.

Sulfonated charcoal as a mild and efficient catalyst for esterification and trans-esterification reactions

Sulfonated charcoal was found to be an efficient heterogeneous catalyst for the acetylation of alcohols in acetic acid. Esterification of different carboxylic acids with different alcohols was also achieved with this catalyst. Acetylation and formylation of alcohols can also be catalysed efficiently in ethyl acetate and ethyl formate in high yields.

Silica Triflate as an Efficient Reagent for the Chemoselective Formylation of Alcohols

Silica triflate, as a new and stable silica-based reagent, is prepared by a reaction of silica gel with trifluoromethane sulfonyl chloride at room temperature. This reagent can be used for the efficient and selective formylation of alcohols in the presence of phenols in a relatively short reaction time and high yields under heterogeneous reaction conditions.

Efficient Acetylation and Formylation of Alcohols in the Presence of Zr(HSO4)4.

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Efficient Acetylation and Formylation of Alcohols in the Presence of Zr(Hso4)4

Acetylation and formylation of alcohols with acetic and formic acids have been carried out in the presence of catalytic amounts of Zr(HSO4)4 under mild and heterogeneous conditions.

Mild and Efficient Procedure for Acetylation and Formylation of Alcohols in the Presence of Mg(HSO4)2.

Mild and Efficient Procedure for Acetylation and Formylation of Alcohols in the Presence of Mg(HSO₄)₂.

Mild and Efficient Procedure for Acetylation and Formylation of Alcohols in the Presence of Mg(HSO4)2

Mild and Efficient Procedure for Acetylation and Formylation of Alcohols in the Presence of Mg(HSO4)2

Cerium Polyoxometalate as a Reusable Catalyst for Acetylation and Formylation of Alcohols.

AbstractFor Abstract see ChemInform Abstract in Full Text.

Cerium Polyoxometalate as a Reusable Catalyst for Acetylation and Formylation of Alcohols

Efficient esterification of primary and sterically-hindered secondary or tertiary alcohols with acetic anhydride was achieved in the presence of ammonium decatungestocerate(IV) icosahydrate, (NH4)8[CeW10O36]·20H2O, as catalyst in high yields. Primary and secondary alcohols were also converted to their corresponding acetates and formates with acetic acid and ethyl formate in the presence of this catalyst. Easy work-up, non-toxicity, reusability, and stability of the catalyst are noteworthy advantages of this method.

Iron Perchlorate on Silica Gel as Multi‐Purpose Reagent for Catalysis of Closure and Rupture of Carbon—Oxygen Bond in Epoxides, Alcohols, and Esters.

Aliphatic alcohols and water in the presence of catalytic amounts of Fe3+ ion introduced as acids esterification with various type alcohols was carried out using the system Fe(ClO4)3-silica gel in dichloromethane under conditions excluding solvolysis. Acetylation and formylation of alcohols was performed by efficient transesterification with ethyl acetate and ethyl formate.

Al(HSO4)3 Catalyzed Acetylation and Formylation of Alcohols.

there are still serious limitations forthe preparation of formates due to the drastic reactionconditions, the use of uncommon reagents, formation ofundesirable or toxic by-products, the application of expen-sive catalysts for preparation of formylating agents andthermal instability of the reagents. Due to the instability ofthe anhydride and acid chloride of formic acid, formylationof alcohols by formic acid is an important synthetic reaction.In continuation of our studies on the applications ofinorganic acidic salts,

Al(HSO4)3Catalyzed Acetylation and Formylation of Alcohols

there are still serious limitations forthe preparation of formates due to the drastic reactionconditions, the use of uncommon reagents, formation ofundesirable or toxic by-products, the application of expen-sive catalysts for preparation of formylating agents andthermal instability of the reagents. Due to the instability ofthe anhydride and acid chloride of formic acid, formylationof alcohols by formic acid is an important synthetic reaction.In continuation of our studies on the applications ofinorganic acidic salts,

Acetylation and Formylation of Alcohols in the Presence of Silica Sulfuric Acid

Alcohols are converted to esters in a mild, clean, and efficient reaction with acetic and formic acids in the presence of silica sulfuric acid. All reactions were performed under mild and completely heterogeneous conditions in refluxing n-hexane.

Iron Perchlorate on Silica Gel as Multi-purpose Reagent for Catalysis of Closure and Rupture of Carbon-Oxygen Bond in Epoxides, Alcohols, and Esters

Aliphatic alcohols and water in the presence of catalytic amounts of Fe3+ ion introduced as acids esterification with various type alcohols was carried out using the system Fe(ClO4)3-silica gel in dichloromethane under conditions excluding solvolysis. Acetylation and formylation of alcohols was performed by efficient transesterification with ethyl acetate and ethyl formate.

ChemInform Abstract: A Convenient and Chemoselective Acetylation and Formylation of Alcohols and Phenols Using Acetic Acid and Ethyl Formate in the Presence of Bi(III) Salts.

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

A Convenient and Chemoselective Acetylation and Formylation of Alcohols and Phenols Using Acetic Acid and Ethyl Formate in the Presence of Bi(III) Salts

A variety of alcohols are acetylated and formylated efficiently with acetic acid and ethyl formate in the presence of catalytic amounts of Bi(III) salts such as BiCl3, Bi(TFA)3 and Bi(OTf)3. BiCl3 and Bi(OTf)3 are also effective catalysts for acetylation of phenols. All of these catalysts are ineffective in formylation of phenols. Selective acetylation and formylation of alcohols in the presence of phenols is an additional advantage of this procedure.

ChemInform Abstract: Acetylation and Formylation of Alcohols with Triphenylphosphine and Carbon Tetrabromide in Ethyl Acetate or Ethyl Formate.

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.