مقالات و آثار علمی استاد دکتر محمدعلی زلفی‌گل

An Efficient Method for the Oxidation of Hantzsch 1,4-Dihydropyridines to their Corresponding Pyridine Derivatives Under Mild and Heterogeneous Conditions

Mohammad Ali Zolfigol, Maryam Kiany‐Borazjani, Majid M. Sadeghi, Iraj Mohammadpoor‐Baltork, Hamid Reza Memarian

Synthetic Communications Vol. 30, No. 3, 551–558

A combination of oxalic acid dihydrate and sodium nitrite in the presence of wet SiO2 was used as an effective oxidizing agent for the oxidation of dihydropyridines to their corresponding pyridine derivatives at room temperature with excell…

ChemInform Abstract: A Convenient Method for the Oxidation of Urazoles to Their Corresponding Triazolinediones under Mild and Heterogeneous Conditions with Sodium Nitrite and Oxalic Acid Dihydrate.

Mohammad Ali Zolfigol, Shadpour E Mallakpour

ChemInform Vol. 31, No. 1

Abstract ChemInform 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…

ChemInform Abstract: An Efficient Method for Production and Storage of Unstable S‐Nitrosothiols under Mild and Heterogeneous Condition with Sodium Nitrite and Oxalic Acid Dihydrate.

Mohammad Ali Zolfigol, Davood Nematollahi, Shadpour E Mallakpour

ChemInform Vol. 30, No. 32

Abstract ChemInform 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…

An Efficient Method for Production and Storage of Unstable S-Nitrosothiols Under Mild and Heterogeneous Condition with Sodium Nitrite and Oxalic Acid Dihydrate

Mohammad Ali Zolfigol, Davood Nematollahi, Shadpour E Mallakpour

Synthetic Communications Vol. 29, No. 13, 2277–2280

Thiols can be readily converted to their corresponding nitrosothiols with a combination of oxalic acid and sodium nitrite in t-butanol at room temperature (26-30°C). The reaction mixture could be solidified with decreasing its temperature t…

Stereoselective chlorination of non-conjugated heterocyclic alkenes

Shadpour E Mallakpour, Mohammad Ali Zolfigol

Indian Journal of Chemistry Section B-organic Chemistry Including Medicinal Chemistry Vol. 38, No. 7, 777–782

ChemInform Abstract: Efficient and Chemoselective N‐Nitrosation of Secondary Amines under Mild and Heterogeneous Conditions with Sodium Nitrite and Oxalic Acid Dihydrate.

Mohammad Ali Zolfigol

ChemInform Vol. 30, No. 26

Abstract ChemInform 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…

ChemInform Abstract: Reaction of 4‐n‐Propyl‐1,2,4‐triazoline‐3,5‐dione with Some Selected Dienes.

Shadpour E Mallakpour, Mohammad Ali Zolfigol

ChemInform Vol. 30, No. 16

Abstract ChemInform 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…

Efficient and Chemoselective N-Nitrosation of Secondary Amines Under Mild and Heterogeneous Conditions with Sodium Nitrite and Oxalic Acid Two Hydrate

Mohammad Ali Zolfigol

Synthetic Communications Vol. 29, No. 6, 905–910

Secondary amines can be quantitatively converted to their corresponding nitroso derivatives with a combination of oxalic acid and sodium nitrite in dichloromethane at room temperature.

ChemInform Abstract: Dinitrogen Tetraoxide Complexes of Iron(III) an Copper(II) Nitrates as Versatile Reagents for Organic Syntheses. Efficient Oxidative Deprotection of Silyl or Tetrahydropyranyl Ethers, Acetals, and Thioacetals.

Habibi Firouzabadi, Nasser Iranpoor, Mohammad Ali Zolfigol

ChemInform Vol. 30, No. 1

Abstract ChemInform 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…

ChemInform Abstract: Efficient and Selective Mono‐ and Dinitration of Phenols with Cr(NO3)3×2N2O4 as a New Nitrating Agent.

Nasser Iranpoor, Habibi Firouzabadi, Mohammad Ali Zolfigol

ChemInform Vol. 29, No. 43

Abstract ChemInform 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…

Dinitrogen Tetraoxide Complexes of Iron(III) and Copper(II) Nitrates as Versatile Reagents for Organic Syntheses. Efficient Oxidative Deprotection of Silyl or Tetrahydropyranyl Ethers, Acetals, and Thioacetals

Habib Firouzabadi, Nasser Iranpoor, Mohammad Ali Zolfigol

Bulletin of the Chemical Society of Japan Vol. 71, No. 9, 2169–2173

Abstract Fe(NO3)3·1.5N2O4 and Cu(NO3)2·N2O4 are efficient reagents for oxidative deprotection of various silyl and tetrahydropyranyl ethers, acetals, and thioacetals in aprotic organic solvents. Fe(NO3)3·1.5N2O4 is also able to perform the …

ChemInform Abstract: Selective Acetylation of Primary Alcohols: Acetyl and Formyl Transfer Reactions with Copper(II) Salts.

Nasser Iranpoor, Habibi Firouzabadi, Mohammad Ali Zolfigol

ChemInform Vol. 29, No. 35

Abstract ChemInform 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…

ChemInform Abstract: Selective and Efficient Transformation of Thioethers to Their Sulfoxides and Catalytic Conversions of Thiols to the Disulfides with Hydrated Iron(III) and Copper(II) Nitrates in Aprotic Organic Solvents or under Solvent Free Conditions.

Habibi Firouzabadi, Nasser Iranpoor, Mohammad Ali Zolfigol

ChemInform Vol. 29, No. 30

Abstract ChemInform 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…

ChemInform Abstract: Dinitrogen Tetraoxide Complexes of Iron(III) and Copper(II) as Efficient and Mild Reagents for Oxidation of Hydroxy Compounds.

Nasser Iranpoor, Habibi Firouzabadi, Mohammad Ali Zolfigol

ChemInform Vol. 29, No. 29

Abstract ChemInform 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…

ChemInform Abstract: Dinitrogen Tetroxide Complexes of Iron(III) and Copper(II) Nitrates as New Versatile Reagents for Organic Synthesis. Efficient and Selective Oxidation of Sulfides to Their Corresponding Sulfoxides under Mild Conditions.

Habibi Firouzabadi, Nasser Iranpoor, Mohammad Ali Zolfigol

ChemInform Vol. 29, No. 24

Abstract ChemInform 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…

ChemInform Abstract: Dinitrogen Tetroxide Copper Nitrate Complex [Cu(NO3)2×N2O4] as a New Nitrosating Agent for Catalytic Coupling of Thiols via Thionitrite.

Nasser Iranpoor, Habibi Firouzabadi, Mohammad Ali Zolfigol

ChemInform Vol. 29, No. 23

Abstract ChemInform 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…

Selective Acetylation of Primary Alcohols: Acetyl and Formyl Transfer Reactions with Copper(II) Salts

Nasser Iranpoor, Habibi Firouzabadi, Mohammad Ali Zolfigol

Synthetic Communications Vol. 28, No. 11, 1923–1934

The efficient esterification of primary and secondary alcohols in acetic acid was achieved in the presence of Cu(NO3)2.3H2O in high yields. Selective acetylation of primary in the presence of secondary hydroxyl groups in excellent yields we…

Selective and Efficient Transformation of Thioethers to Their Sulfoxides and Catalytic Conversions of Thiols to The Disulfides with Hydrated Iron(III) and Copper(II) Nitrates in Aprotic Organic Solvents or Under Solvent Free Conditions.

Habibi Firouzabadi, Nasser Iranpoor, Mohammad Ali Zolfigol

Synthetic Communications Vol. 28, No. 7, 1179–1187

Fe(NO3)3.9H2O and Cu(NO3)2.3H2O are efficient reagents for the conversion of thioethers to their sulfoxides in refluxing EtOAc in high yields. Fe(NO3)3.9H2O is also able to proceed the transformations under solvent free conditions at room t…

Dinitrogen Tetraoxide Complexes of Iron(III) and Copper(II) as Efficient and Mild Reagents for Oxidation of Hydroxy Compounds

Nasser Iranpoor, Habib Firouzabadi, Mohammad Ali Zolfigol

Bulletin of the Chemical Society of Japan Vol. 71, No. 4, 905–908

Abstract Fe(NO3)3·1.5N2O4 is a highly efficient reagent for the oxidation of various classes of hydroxy compounds in dichloromethane at room temperature, or in the absence of solvent. Cu(NO3)2·N2O4 oxidizes different hydroxy compounds in re…

Dinitrogen Tetroxide Copper Nitrate Complex [Cu(NO3)2.N2O4] As a New Nitrosating Agent for Catalytic Coupling of Thiols via Thionitrite

Nasser Iranpoor, Habibi Firouzabadi, Mohammad Ali Zolfigol

Synthetic Communications Vol. 28, No. 2, 367–375

A catalytic and efficient oxidative coupling of thiols to disulfides is described using Cu(NO3)2.N2O4 as a new and efficient nitrosating agent in acetone at room temperature. The reaction is shown to occur immediately through the intermedia…

Dinitrogen Tetroxide Complexes of Iron(III) and Copper(II) Nitrates as New Versatile Reagents for Organic Synthesis. Efficient and Selective Oxidation of Sulfides to their Corresponding Sulfoxides Under Mild Conditions.

Habibi Firouzabadi, Nasser Iranpoor, Mohammad Ali Zolfigol

Synthetic Communications Vol. 28, No. 2, 377–385

Fe(NO3)3. 1.5 N2O4 and Cu(NO3)2.N2O4 are new, stable, and highly efficient reagents for the quantitative transformation of sulfides to sulfoxides in dichloromethane or in the absence of solvent at room temperature. Cu(NO3)2.N2O4 is highly s…

ChemInform Abstract: Dinitrogen Tetroxide Complexes of Iron and Copper Nitrates as New Reagents for Selective Mono‐ and Dinitration of Phenolic Compounds.

Habibi Firouzabadi, Nasser Iranpoor, Mohammad Ali Zolfigol

ChemInform Vol. 28, No. 50

Abstract ChemInform 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…

A Reinvestigation of Nitration of Phenols with Metal Nitrates under Non-Aqueous and Aprotic Conditions

Habib Firouzabadi, Nasser Iranpoor, Mohammad Ali Zolfigol

DOAJ (DOAJ: Directory of Open Access Journals)

Nitration of phenol and various 4-substituted phenols with Cu(NO3)2.3H2O, Cu(NO3)2.3H2O/SiO2, 9H2O and Cr(NO3)2. 9H2O in different anhydrous organic solvents are investigated. High selectivity ratio of para vs ortho isomers has been observe…

Dinitrogen Tetroxide Complexes of Iron and Copper Nitrates as New Reagents for Selective Mono- and Dinitration of Phenolic Compounds

Habibi Firouzabadi, Nasser Iranpoor, Mohammad Ali Zolfigol

Synthetic Communications Vol. 27, No. 19, 3301–3311

Fe(NO3)3. 1.5 N2O4 and Cu(NO3)2. N2O4 are easily prepared reagents for the efficient and selective mono- or dinitration of phenolic compounds. In comparison with metal nitrates, these complexes resemble a synergetic effect on the rates and …