مقالات و آثار علمی استاد دکتر محمدعلی زلفی‌گل

Novel and chemoselective dehydrogenation of 2-substituted imidazolines with potassium permanganate supported on silica gel

Iraj Mohammadpoor‐Baltork, Mohammad Ali Zolfigol, Mohammad Abdollahi‐Alibeik

Tetrahedron Letters Vol. 45, No. 47, 8687–8690

Acetalization of Carbonyl Compounds by Using Silica‐Bound Sulfuric Acid under Green Condition.

Bi Bi Fatemeh Mirjalili, Mohammad Ali Zolfigol, Abdolhamid Bamoniri, Azizeh Hazar

ChemInform Vol. 35, No. 44

Abstract For Abstract see ChemInform Abstract in Full Text.

Silica sulfuric acid as an efficient and reusable reagent for crossed-aldol condensation of ketones with aromatic aldehydes under solvent-free conditions

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

Journal of the Brazilian Chemical Society Vol. 15, No. 5, 773–776

Aromatic aldehydes undergo crossed-aldol condensation with ketones in the presence of silica sulfuric acid under solvent-free conditions to afford the corresponding a, b -unsaturated aldol products in excellent yields. The reagent is reusab…

Nitration of Aromatic Compounds on Silica Sulfuric Acid

Mohammad Ali Zolfigol

Bulletin of the Korean Chemical Society Vol. 25, No. 9, 1414–1416

Nitration of organic compounds has long been a very active and rewarding area of research and is the subject of a large body of literature.1 Also nitro-aromatics compounds are extensively utilised and act as chemical feedstocks for a wide r…

EFFICIENT AND SELECTIVE OXIDATION OF THIOLS TO DISULFIDES BY 1,4-DIAZABICYCLO[2.2.2]OCTANE-DI-N-OXIDE-DI-PERHYDRATE UNDER NEUTRAL AND HETEROGENEOUS CONDITIONS

Peyman Salehi, Mohammad Ali Zolfigol, Leila Bazzaz Tolami

Phosphorus, sulfur, and silicon and the related elements Vol. 179, No. 9, 1777–1781

1,4-Diazabicyclo[2.2.2]octane-di-N-oxide-di-perhydrate[3pc] selectively oxidizes thiols to disulfides in acetonitrile in good yields. The method is generally useful for a wide variety of thiols.

THE APPLICATION OFN,N′DIBROMO-N,N′-1,2-ETHANEDIYL BIS(P-TOLUENESULFONAMIDE) AS A POWERFUL REAGENT FOR CONVERSION OF CARBOXYLIC ACIDS INTO ESTERS AND AMIDES WITH TRIPHENYLPHOSPHINE

Ardeshir Khazaei, Shadpour E Mallakpour, Mohammad Ali Zolfigol, Ramin Ghorbani‐Vaghei, Eskandar Kolvari

Phosphorus, sulfur, and silicon and the related elements Vol. 179, No. 9, 1715–1721

In the presence of equivalent amounts of triphenylphenylphosphine and N,N′-dibromo-N,N′-1,2-ethanediylbis(p-toluenesulphonamide) ester and amide compounds can be generated in high yields from the corresponding carboxylic acid and alcohols o…

Oxidative Coupling of Thiols in Solution and under Solvent‐Free Conditions

Farhad Shirini, Mohammad Ali Zolfigol, Mahroo Khaleghi

ChemInform Vol. 35, No. 33

Abstract For Abstract see ChemInform Abstract in Full Text.

Silica Sulfuric Acid as a Mild and Efficient Reagent for the Acetylation of Alcohols in Solution and under Solvent‐Free Conditions.

Farhad Shirini, Mohammad Ali Zolfigol, Kamal Mohammadi

ChemInform Vol. 35, No. 32

1,3‐Dibromo‐5,5‐dimethylhydantoin as a Novel Oxidizing Agent for the Oxidation of 1,3,5‐Trisubstituted Pyrazolines under Both Heterogeneous and Solvent‐Free Conditions.

Davood Azarifar, Mohammad Ali Zolfigol, Behrooz Maleki

ChemInform Vol. 35, No. 32

Efficient Synthesis of 3,4‐Dihydropyrimidin‐2‐(1H)‐ones by Aluminum Hydrogensulfate.

Mohammad Mehdi Khodaei, Peyman Salehi, Mohammad Ali Zolfigol, Sara Sirouszadeh

ChemInform Vol. 35, No. 29

Abstract For Abstract see ChemInform Abstract in Full Text.

Trichloroisocyanuric Acid as a Novel Oxidizing Agent for the Oxidation of 1,3,5‐Trisubstituted Pyrazolines under Both Heterogeneous and Solvent Free Conditions.

Mohammad Ali Zolfigol, Davood Azarifar, Behrooz Maleki

ChemInform Vol. 35, No. 26

Solvent‐free Oxidation of Alcohols by Silica Sulfuric Acid/Sodium Dichromate Dihydrate or Potassium Permanganate/Wet SiO2 System

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

Journal of the Chinese Chemical Society Vol. 51, No. 3, 509–512

Abstract A combination of silica sulfuric acid and sodium dichromate dihydrate or potassium permanganate in the presence of wet SiO2 was used as an effective oxidizing agent for oxidation of alcohols to their corresponding aldehydes or keto…

Calcium Hypochlorite as an Efficient Reagent for Oxidation of Urazoles under Mild Heterogeneous Conditions

Mohammad Ali Zolfigol, Sh. Mallakpour, A. Khazaiae, R. G. Vaghaie, Mehdi Torabi

Russian Journal of Organic Chemistry Vol. 40, No. 6, 914–916

SILICA SULFURIC ACID; AN EFFICIENT AND REUSABLE CATALYST FOR REGIOSELECTIVE RING OPENING OF EPOXIDES BY ALCOHOLS AND WATER

Peyman Salehi, Minoo Dabiri, Mohammad Ali Zolfigol, Mohammad Ali Bodaghifard

Phosphorus, sulfur, and silicon and the related elements Vol. 179, No. 6, 1113–1121

The nucleophilic ring opening reactions of epoxides by aliphatic alcohols and water are achieved efficiently in the presence of catalytic amounts of silica sulfuric acid with high degree of regioselectivity. The catalyst is reusable and can…

Al(HSO4)3 as an Efficient Catalyst for the Acetylation of Alcohols in Solution and Under Solvent Free Conditions.

Farhad Shirini, Mohammad Ali Zolfigol, Masoumeh Abedini

ChemInform Vol. 35, No. 24

Abstract For Abstract see ChemInform Abstract in Full Text.

Oxidation of Alcohols Using (NH4)2Cr2O4 in the Presence of Al(HSO4)3 and Wet SiO2.

Farhad Shirini, Mohammad Ali Zolfigol, Masoumeh Abedini, Peyman Salehi

ChemInform Vol. 35, No. 20

Abstract For Abstract see ChemInform Abstract in Full Text.

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

Farhad Shirini, Mohammad Ali Zolfigol, Masoumeh Abedini, Peyman Salehi

ChemInform Vol. 35, No. 17

Trichloroisocyanuric Acid/NaNO2/Wet SiO2 as an Efficient System for the Selective Dinitration of Phenols under Solvent‐Free Conditions.

Mohammad Ali Zolfigol, Elaheh Madrakian, Ezat Ghaemi

ChemInform Vol. 35, No. 10

Abstract For Abstract see ChemInform Abstract in Full Text.

Efficient Synthesis of 3,4‐Dihydropyrimidin‐2(1H)‐ones over Silica Sulfuric Acid as a Reusable Catalyst under Solvent‐Free Conditions.

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

ChemInform Vol. 35, No. 7

Abstract For Abstract see ChemInform Abstract in Full Text.

Silica Sulfuric Acid: 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, BiBi Fatemeh Mirjalili, Abdolhamid Bamoniri

ChemInform Vol. 35, No. 6

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

ChemInform Vol. 35, No. 5

Synthesis of 1,4-Dihydropyridines under Solvent-free Conditions

Mohammad Ali Zolfigol, Maliheh Safaiee

Synlett No. 5, 0827–0828

Ethyl acetoacetate and a range of aldehydes in the presence of ammonium acetate are converted into 1,4-dihydropyridines under mild and solvent-free conditions with good to excellent yields.

1,3-Dibromo-5,5-Dimethylhydantoin [DBDMH] as an Efficient and Selective Agent for the Oxidation of Thiols to Disulfides in Solution or under Solvent-Free Conditions

Ardeshir Khazaei, Mohammad Ali Zolfigol, Amin Rostami

Synthesis No. 18, 2959–2961

A useful method for oxidation of various thiols to their corresponding disulfides with 1,3-dibromo-5,5-dimethylhydantoin (DBDMH) in very short reaction times and mild conditions under both solution and solvent-free conditions is described.

A Convenient Method for the Preparation of Some New Derivatives of 1,3,5-s- Triazine under Solvent Free Condition

Davood Azarifar, Mohammad Ali Zolfigol, Ali Forghaniha

Heterocycles Vol. 63, No. 8, 1897–1897

Nucleophilic reactions on cyanuric chloride were carried out under solvent free conditions to give 1,3,5-s-triazine derivatives with excellent yields.A search through literature revealed that cyanuric chloride ( 1) is a well-known and very …