کتابخانه جامع آثار علمی

Silica Sulfuric Acid/KClO3/Wet SiO2 as an Efficient Heterogeneous Method for the Oxidation of Alcohols under Mild Conditions.

BiBi Fatemeh Mirjalili, Mohammad Ali Zolfigol, Abdolhamid Bamoniri, Zahra Zaghaghi

ChemInform Vol. 35, No. 2

Abstract For Abstract see ChemInform Abstract in Full Text.

Regeneration of Carbonyl Compounds by Cleavage of C=N Bonds under Mild and Completely Heterogeneous Conditions.

Farhad Shirini, Mohammad Ali Zolfigol, A. Safari, Iraj Mohammadpoor‐Baltork, B. F. Mirjalili

ChemInform Vol. 34, No. 52

Abstract For Abstract see ChemInform Abstract in Full Text.

Silica Sulfuric Acid/Wet SiO2 as a Novel Heterogeneous System for Cleavage of Carbon Nitrogen Double Bonds Under Mild Conditions

Mohammad Ali Zolfigol, Iraj Mohammad Poor-Baltork, BiBi Fatemeh Mirjalili, Farhad Shirini, Sadegh Salehzadeh, Hassan Keypour, Arash Ghorbani‐Choghamarani, Mohammad Hassan Zebarjadian, Kamal Mohammadi, Azizeh Hazar

Phosphorus, sulfur, and silicon and the related elements Vol. 178, No. 12, 2735–2743

Silica sulfuric acid in the presence of wet SiO2 was caused to react with oximes, hydrazones, semicarbazones, azines, and Schiff-bases. It was observed that it converts them to their corresponding carbonyl compounds in good to excellent yie…

Silica Chloride/Wet SiO2 as a Novel Heterogeneous System for the Deprotection of Acetals Under Mild Conditions

BiBi Fatemeh Mirjalili, Ali Pourjavadi, Mohammad Ali Zolfigol, Abdolhamid Bamoniri

Phosphorus, sulfur, and silicon and the related elements Vol. 178, No. 12, 2667–2670

A combination of silica chloride and wet SiO2 was used as an effective deacetalizating agent for the conversion of acetals to their corresponding carbonyl derivatives under mild and heterogeneous condition.

Magnesium Hydrogensulfate: A Cheap and Efficient Catalyst for the Conversion of Epoxides into β‐Alkoxy Alcohols, Vicinal‐Diols, and Thiiranes.

Peyman Salehi, Mohammad Mahdi Khodaei, Mohammad Ali Zolfigol, A. Keyvan

ChemInform Vol. 34, No. 50

Abstract For Abstract see ChemInform Abstract in Full Text.

Oxidation of Alcohols Using (NH4)2Cr2O7 in the Presence of Silica Chloride/Wet SiO2 in Solution and under Solvent‐Free Conditions.

Farhad Shirini, Mohammad Ali Zolfigol, Mahroo Khaleghi

ChemInform Vol. 34, No. 51

Abstract For Abstract see ChemInform Abstract in Full Text.

Silica Sulfuric Acid as an Efficient Reagent for the Synthesis of Symmetrical Ethers Under Mild and Heterogeneous Conditions

Farhad Shirini, Mohammad Ali Zolfigol, Kamal Mohammadi

Phosphorus, sulfur, and silicon and the related elements Vol. 178, No. 11, 2357–2361

A mild and efficient method for the synthesis of symmetrical ethers using silica sulfuric acid is reported. All reactions are performed under compeletly heterogeneous conditions in good to high yields.

1,4‐Diazabicyclo[2.2.2]octane 1,4‐Bis(oxide)‐bis(hydrogen peroxide)/MClx as a Novel Heterogeneous System for the Oxidation of Urazoles under Mild Conditions.

Mohammad Ali Zolfigol, Peyman Salehi, Shadpour Mallakpour, Mehdi Torabi

ChemInform Vol. 34, No. 47

Abstract For Abstract see ChemInform Abstract in Full Text.

The use of Nafion-H® as an efficient catalyst for the direct conversion of primary and secondary trimethylsilyl ethers to their corresponding ethers under mild and heterogeneous conditions

Mohammad Ali Zolfigol, Iraj Mohammadpoor‐Baltork, Davood Habibi, BiBi Fatemeh Mirjalili, Abdolhamid Bamoniri

Tetrahedron Letters Vol. 44, No. 44, 8165–8167

Efficient Oxidation of Alcohols with KBrO 3 in the Presence of Silica Chloride and Wet SiO 2

Farhad Shirini, Mohammad Ali Zolfigol, Mahroo Khaleghi

Phosphorus, sulfur, and silicon and the related elements Vol. 178, No. 10, 2107–2110

Alcohols were oxidized to their corresponding carbonyl compounds with KBrO 3 in the presence of silica chloride and wet SiO 2 , in solution and under solvent free conditions.

Chemoselective N‐Nitrosation of Secondary Amines under Mild and Heterogeneous Conditions.

Mohammad Ali Zolfigol, Arash Ghorbani Choghamarani, Abolfazl Taqian‐Nasab, Hassan Keypour, Sadegh Salehzadeh

ChemInform Vol. 34, No. 43

Abstract For Abstract see ChemInform Abstract in Full Text.

Silica Chloride/NaNO2 as a Novel Heterogeneous System for the Nitration of Phenols Under Mild Conditions

Mohammad Ali Zolfigol, Farhad Shirini, Arash Ghorbani Chogamarani

Phosphorus, sulfur, and silicon and the related elements Vol. 178, No. 9, 2019–2025

Nitrophenols can be obtained via direct nitration of phenols with silica chloride, NaNO2, and wet SiO2 at room temperature in moderate to high yields.

Silica Chloride as a Mild and Efficient Reagent for Acetylation of Alcohols

Farhad Shirini, Mohammad Ali Zolfigol, Mahroo Khaleghi

Phosphorus, sulfur, and silicon and the related elements Vol. 178, No. 9, 1999–2002

A variety of alcohols underwent acetylation with acetic anhydride in the presence of silica chloride. All reactions were performed at room temperature and under completely heterogeneous conditions in good to high yields. We appreciate the f…

Silica Chloride/Wet SiO2 as a Novel Heterogeneous System for Deprotection of Oximes, Hydrazones, and Semicarbazones.

Farhad Shirini, Mohammad Ali Zolfigol, Mahroo Khaleghi, Iraj Mohammadpour‐Baltork

ChemInform Vol. 34, No. 37

Abstract For Abstract see ChemInform Abstract in Full Text.

Silica Sulfuric Acid/Potassium Permanganate/Wet SiO2 as an Efficient Heterogeneous Method for the Oxidation of Alcohols under Mild Conditions.

BiBi Fathemeh Mirjalili, Mohammad Ali Zolfigol, Abdolhamid Bamoniri, Amin Zarei

ChemInform Vol. 34, No. 36

Abstract For Abstract see ChemInform Abstract in Full Text.

Catalyzed Friedel—Crafts Acylation of Alkoxy Benzenes by Ferric Hydrogensulfate.

Peyman Salehi, Mohammad Mahdi Khodaei, Mohammad Ali Zolfigol, Shahpour Zeinoldini

ChemInform Vol. 34, No. 35

Abstract For Abstract see ChemInform Abstract in Full Text.

Silica Chloride/NaNO 2 as a Novel Heterogeneous System for the Oxidation of 1,4-Dihydropyridines Under Mild Conditions via In Situ Generation of NOCl

Mohammad Ali Zolfigol, Farhad Shirini, Arash Ghorbani Choghamarani, Iraj Mohammadpoor‐Baltork

Phosphorus, sulfur, and silicon and the related elements Vol. 178, No. 8, 1709–1715

A combination of silica chloride and sodium nitrite in the presence of wet SiO 2 were used as an effective oxidizing agent for the oxidation of dihydropyridines to their corresponding pyridine derivatives under mild and heterogeneous condit…

Chemoselective Solvent-free Deoximation by (NH4)2Cr2O7 in the Presence of ZrCl4 on Wet SiO2

Farhad Shirini, Mohammad Ali Zolfigol, Akram Pourhabib

Russian Journal of Organic Chemistry Vol. 39, No. 8, 1191–1192

Silica Sulfuric Acid/Sodium Dichromate Dihydrate as an Efficient Heterogeneous Method for the Oxidation of Alcohols Under Mild Conditions

BiBi Fatemeh Mirjalili, Mohammad Ali Zolfigol, Abdolhamid Bamoniri, Amin Zarei

Phosphorus, sulfur, and silicon and the related elements Vol. 178, No. 8, 1845–1849

A combination of silica sulfuric acid and sodium dichromate dihydrate in the presence of wet SiO 2 were used as an effective oxidizing agent for the oxidation of alcohols to their corresponding aldehyde or ketone derivatives in dichlorometh…

The Use of Nafion‐H®/NaNO2 as an Efficient Procedure for the Chemoselective N‐Nitrosation of Secondary Amines under Mild and Heterogeneous Conditions.

Mohammad Ali Zolfigol, Davood Habibi, BiBi Fatemeh Mirjalili, Abdolhamid Bamoniri

ChemInform Vol. 34, No. 30

Abstract For Abstract see ChemInform Abstract in Full Text.

Silica Sulfuric Acid/NaNO2 as a Novel Heterogeneous System for the Oxidation of Urazoles under Mild Conditions.

Mohammad Ali Zolfigol, Gholamabbas Chehardoli, Shadpour E Mallakpour

ChemInform Vol. 34, No. 29

Neat chlorosulfonic acid reacted with silica gel to give silica sulfuric acid (I) in which sulfuric acid functions immobilized on the surface of silica gel via covalent bonding. Urazoles and bis-urazoles can be readily converted to their co…

Silica Sulfuric Acid: An Efficient and Reusable Catalyst for the One‐Pot Synthesis of 3,4‐Dihydropyrimidin‐2(1H)‐ones.

Peyman Salehi, Minoo Dabiri, Mohammad Ali Zolfigol, Mohammad Ali Bodaghi Fard

ChemInform Vol. 34, No. 27

Abstract For Abstract see ChemInform Abstract in Full Text.

A Mild and Efficient Method for Chemoselective Silylation of Alcohols Using Hexamethyldisilazane in the Presence of Silica Chloride

Farhad Shirini, Mohammad Ali Zolfigol, Kamal Mohammadi

Phosphorus, sulfur, and silicon and the related elements Vol. 178, No. 7, 1567–1570

Reaction of alcohols with hexamethyldisilazane in the presence of silica chloride provides efficiently the corresponding trimethylsilyl ethers. This system discriminates absolutely amines and thiols from alcohols.

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

Farhad Shirini, Mohammad Ali Zolfigol, Kamal Mohammadi

Phosphorus, sulfur, and silicon and the related elements Vol. 178, No. 7, 1617–1621

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-h…