کتابخانه جامع آثار علمی

Chemoselective trimethylsilylation of alcohols catalyzed by saccharin sulfonic acid

Farhad Shirini, Mohammad Ali Zolfigol, Masoumeh Abedini

Monatshefte für Chemie - Chemical Monthly Vol. 140, No. 1, 61–64

Silica sulfuric acid catalyzed synthesis of benzoxazoles, benzimidazoles and oxazolo[4,5-b]pyridines under heterogeneous and solvent-free conditions

Iraj Mohammadpoor‐Baltork, Majid Moghadam, Shahram Tangestaninejad, Valiollah Mirkhani, Mohammad Ali Zolfigol, Seyedeh Fatemeh Hojati

Journal of the Iranian Chemical Society Vol. 5, No. S1, S65–S70

The first report on the synthesis of new hantzsch N-Ethyldimetyl Acetal-1,4-dihydropyridines with aldehyde synthon under microwave irradiation

Mohammad Ali Zolfigol, Mohammad Mokhlesi

Journal of the Iranian Chemical Society Vol. 5, No. S1, S91–S96

Vanadium Hydrogen Sulfate (I): Chemoselective Trimethylsilylation of Alcohols and Deprotection of Trimethylsilyl Ethers

Farhad Shirini, Mohammad Ali Zolfigol, Masoumeh Abedini, Ali Reza Sakhaei

Journal of the Chinese Chemical Society Vol. 55, No. 5, 943–946

Abstract Trimethylsilylation of alcohols with hexamethyldisilazane (HMDS) catalyzed by V(HSO4)3 under mild and completely heterogeneous reaction condition is reported. The method is highly chemoselective for the protection of alcohols in th…

ChemInform Abstract: Selective and Efficient Oxidation of Sulfides to Sulfoxides Using Ammonium Cerium(IV) Nitrate in the Presence of a Catalytic Amount of KBr or NaBr.

Mohammad Ali Zolfigol, Kamal Amani, Maryam Hajjami, Arash Ghorbani‐Choghamarani

ChemInform Vol. 39, No. 43

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a…

PEG-N2O4: An Efficient Nitrating Agent for the Selective Mono- and Dinitration of Phenols Under Mild Conditions

Mohammad Ali Zolfigol, Elaheh Madrakian, Ezat Ghaemi, Khodabakhsh Niknam

Synthetic Communications Vol. 38, No. 19, 3366–3374

N2O4 was easily impregnated on polyethyleneglycol to give a stable reagent. The polyethyleneglycol-N2O4 (PEG-N2O4) system was used as an effective nitrating agent for the nitration of phenols. Mono- and dinitrophenols can be obtained via di…

Silica sulfuric acid as an efficient catalyst for the Friedländer quinoline synthesis from simple ketones and ortho-aminoaryl ketones under microwave irradiation

Mohammad Ali Zolfigol, Peyman Salehi, Morteza Shiri, Toktam Faal Rastegar, Arash Ghaderi

Journal of the Iranian Chemical Society Vol. 5, No. 3, 490–497

Tribromoisocyanuric Acid and DABCO-Br as Efficient Catalysts for the Silylation of Hydroxyl Groups with Hexamethyldisilazane

Khodabakhsh Niknam, Mohammad Ali Zolfigol, Gholamabbas Chehardoli, Mina Dehghanian

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION) Vol. 29, No. 9, 901–906

Solvent-free oxidation of organic compounds with Fe(NO3)3.9H2O catalyzed by NaHSO4.H2O

Farhad Shirini, Mohammad Ali Zolfigol, Azadeh Shahriari

Journal of the Iranian Chemical Society Vol. 5, No. 3, 420–424

Ferric nitrate in the presence of catalytic amounts of KBr or NaBr: an efficient and homoselective catalytic media for the selective oxidation of sulfides to sulfoxides

Kamal Amani, Mohammad Ali Zolfigol, Arash Ghorbani‐Choghamarani, Maryam Hajjami

Monatshefte für Chemie - Chemical Monthly Vol. 140, No. 1, 65–68

M(HSO4)n-Promoted Synthesis of 2-Aryl-1-arylmethyl-1H-1,3-benzimidazole Derivatives

Khodabakhsh Niknam, Mohammad Ali Zolfigol, Negar Safikhani

Synthetic Communications Vol. 38, No. 17, 2919–2928

We have developed a highly selective synthesis of 2-aryl-1-arylmethyl-1H-1,3-benzimidazoles from the reaction of o-phenylenediamines and aromatic aldehydes in the presence of metal hydrogen sulfates [M(HSO4)n] in water and also under solven…

A simple and efficient route for the synthesis of di and tri(bis(indolyl) methanes) as new triarylmethanes

Mohammad Ali Zolfigol, Peyman Salehi, Morteza Shiri, Azam Sayadi, Abbas Abdoli, Hassan Keypour, Majid Rezaeivala, Khodabakhsh Niknam, Eskandar Kolvari

Molecular Diversity Vol. 12, No. 3-4, 203–207

Silica Sulfuric Acid and Al(HSO4)3: As Efficient Catalysts for the Formylation of Alcohols by Using Ethyl Formate under Heterogeneous Conditions

Mohammad Ali Zolfigol, Gholamabbas Chehardoli, Mina Dehghanian, Khodabakhsh Niknam, Farhad Shirini, Ahmad Khoramabadi‐zad

Journal of the Chinese Chemical Society Vol. 55, No. 4, 885–889

Abstract A mixture of ethyl formate and a catalytic amount of silica sulfuric acid or Al(HSO4)3 as suitable formylating systems can formylate various alcohols to their corresponding formate ester derivatives under mild, nearly neutral and h…

PEG‐N2O4 System as an Efficient Reagent both for the Rapid Oxidation of Urazoles and 1,4‐Dihydropyridines under Nonaqueous Conditions

Mohammad Ali Zolfigol, Ezat Ghaemi, Elaheh Madrakian, Khodabakhsh Niknam

Journal of the Chinese Chemical Society Vol. 55, No. 3, 704–711

Abstract N2O4 was easily impregnated on polyethyleneglycol to give a stable reagent. Polyethyleneglycol‐N2O4 (PEG‐N2O4) system was used as an effective oxidizing agent for the oxidation of urazoles and bis‐urazoles to their corresponding tr…

N,N,N′,N′‐Tetrabromobenzene‐1,3‐Disulfonamide and Poly(N‐Bromo‐N‐Ethyl‐Benzene‐1,3‐Disulfonamide) as Efficient Catalysts for the Methoxymethylation of Alcohols under Solvent‐Free Conditions

Ramin Ghorbani‐Vaghei, Mohammad Ali Zolfigol, Mostafa Amiri, Hojat Veisi

Journal of the Chinese Chemical Society Vol. 55, No. 3, 632–635

Abstract Methoxymethylation of a variety of alcohols was performed using formaldehyde dimethyl acetal in the presence of N,N,N′,N′‐tetrabromobenzene‐1,3‐disulfonamide [TBBDA] and poly(N‐bromo‐N‐ethylbenzene‐1,3‐disulfonamide) [PBBS] as cata…

ChemInform Abstract: N‐Bromo Reagent Mediated Oxidation of Urazoles to Their Corresponding Triazolinediones under Mild and Heterogeneous Conditions.

Mohammad Ali Zolfigol, Gholamabbas Chehardoli, Ezat Ghaemi, Elaheh Madrakian, Reza Zare, Tahereh Azadbakht, Khodabakhsh Niknam, Shadpour Mallakpour

ChemInform Vol. 39, No. 22

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a…

ChemInform Abstract: Fe(NO3)3×9H2O/Fe (HSO4)3: An Efficient Reagent System for the Oxidation of Alcohols, Thiols and Sulfides in the Absence of Solvent.

Farhad Shirini, Mohammad Ali Zolfigol, Abdolreza Abri

ChemInform Vol. 39, No. 21

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a…

Selective and efficient oxidation of sulfides to sulfoxides using ammonium cerium (IV) nitrate in the presence of a catalytic amount of KBr or NaBr

Mohammad Ali Zolfigol, Kamal Amani, Maryam Hajjami, Arash Ghorbani‐Choghamarani

Monatshefte für Chemie - Chemical Monthly Vol. 139, No. 8, 895–899

Solid-phase extraction method for preconcentration of trace amounts of some metal ions in environmental samples using silica gel modified by 2,4,6-trimorpholino-1,3,5-triazin

Tayyebeh Madrakian, Mohammad Ali Zolfigol, Mohammad Solgi

Journal of Hazardous Materials Vol. 160, No. 2-3, 468–472

Analysis of trans-Resveratrol in Iranian Grape Cultivars by LC

M. Esna-Ashari, Mansour Gholami, Mohammad Ali Zolfigol, Morteza Shiri, Aghil Mahmoodi-Pour, Mehdi Hesari

Chromatographia Vol. 67, No. 11-12, 1017–1020

Synthesis, in vitro antibacterial and carbonic anhydrase II inhibitory activities of N-acylsulfonamides using silica sulfuric acid as an efficient catalyst under both solvent-free and heterogeneous conditions

Ahmad Reza Massah, Hadi Adibi, Reza Khodarahmi‬, Ramin Abiri, Mohammad Bagher Majnooni, Sherita Shahidi, Beheshteh Asadi, Masomeh Mehrabi, Mohammad Ali Zolfigol

Bioorganic & Medicinal Chemistry Vol. 16, No. 10, 5465–5472

ChemInform Abstract: Silica Triflate as an Efficient Reagent for the Solvent‐Free Synthesis of Coumarins.

Farhad Shirini, Katayoun Marjani, Hossein Taherpour Nahzomi, Mohammad Ali Zolfigol

ChemInform Vol. 39, No. 18

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a…

ChemInform Abstract: Regioselective Tetrahydropyranylation of Alcohols Catalyzed by Fe(HSO4)3.

Farhad Shirini, Mohammad Ali Zolfigol, Abdolreza Abri

ChemInform Vol. 39, No. 18

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a…

ChemInform Abstract: Fe(HSO4)3 Promoted Trimethylsilylation of Alcohols and Phenols in Solution and under Solvent‐Free Conditions.

Farhad Shirini, Mohammad Ali Zolfigol, Abdolreza Abri

ChemInform Vol. 39, No. 14

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a…