کتابخانه جامع آثار علمی

4-(p-Chloro)phenyl-1,2,4-triazole-3,5-dione as a novel and reusable reagent for the oxidation of 1,3,5-trisubstituted pyrazolines under mild conditions

Mohammad Ali Zolfigol, Davood Azarifar, Shadpour Mallakpour, Iraj Mohammadpoor‐Baltork, Ali Forghaniha, Behrooz Maleki, Mohammad Abdollahi‐Alibeik

Tetrahedron Letters Vol. 47, No. 5, 833–836

TUNGSTATE SULFURIC ACID/ KMnO4 AS A NOVEL HETEROGENEOUS SYSTEM FOR THE RAPID AROMATIZATION OF HANTZSCH 1, 4-DIHYDROPYRIDINES UNDER MILD CONDITIONS

Bahador Karami, Morteza Montazerozohori, Mohammad Hossein Habibi, Mohammad Ali Zolfigol

Heterocyclic Communications Vol. 11, No. 6, 513–516

Article TUNGSTATE SULFURIC ACID/ KMnO4 AS A NOVEL HETEROGENEOUS SYSTEM FOR THE RAPID AROMATIZATION OF HANTZSCH 1, 4-DIHYDROPYRIDINES UNDER MILD CONDITIONS was published on December 1, 2005 in the journal Heterocyclic Communications (volume …

Solvent-Free Synthesis of 3,4-Dihydropyrimidin-2(1H)-Ones Using Trichloroisocyanuric Acid

Farhad Shirini, Mohammad Ali Zolfigol, Esmail Mollarazi

Letters in Organic Chemistry Vol. 2, No. 8, 718–720

An efficient method for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones (DHPMs) using trichloroisocyanuric acid (TCICA) under solvent-free conditions is reported. Keywords: Biginelli reaction, 3,4-dihydropyrimidin-2(1H)-ones, condensation …

Chromium Trioxide Supported on NaHSO4.H2O: Efficient Oxidative Deprotection of Trimethylsilyl Ethers in Solution and Under Solvent Free Conditions

Farhad Shirini, Mohammad Ali Zolfigol, Shayesteh Torabi

Letters in Organic Chemistry Vol. 2, No. 8, 760–762

Chromium trioxide supported on NaHSO4.H2O can be used as an efficient reagent for the conversion of trimethylsilyl ethers to their corresponding carbonyl compounds in solution and under solvent free conditions. Keywords: Chromium trioxide, …

4‐Phenyl‐1,2,4‐triazole‐3,5‐dione as a Novel and Reusable Reagent for the Aromatization of 1,4‐Dihydropyridines under Mild Conditions.

Mohammad Ali Zolfigol, Arash Ghorbani Choghamarani, Mozhgan Shahamirian, Maliheh Safaiee, Iraj Mohammadpoor‐Baltork, Shadpour E Mallakpour, Mohammad Abdollahi‐Alibeik

ChemInform Vol. 36, No. 48

Abstract For Abstract see ChemInform Abstract in Full Text.

CaCl 2 .2H 2 O assisted oxidation of alcohols with (NH 4 ) 2 Cr 2 O 7

Farhad Shirini, Mohammad Ali Zolfigol, A. Safari

Silylation and Tetrahydropyranylation of Alcohols Catalyzed by Al(HSO4)3

Farhad Shirini, Mohammad Ali Zolfigol, Masoumeh Abedini

Bulletin of the Chemical Society of Japan Vol. 78, No. 11, 1982–1985

Abstract Trimethylsilylation and tetrahydropyranylation of alcohols are efficiently catalyzed by Al(HSO4)3. All reactions were performed under mild and completely heterogeneous conditions in good-to-high yields.

Molybdatophosphoric Acid as a Catalyst for the Methoxymethylation of Alcohols under Solvent‐Free Conditions.

Mohammad Ali Zolfigol, Morteza Shiri

ChemInform Vol. 36, No. 46

Abstract For Abstract see ChemInform Abstract in Full Text.

KBrO3/ZrClO2×8H2O: An Efficient Reagent System for the Oxidation of Alcohols.

Farhad Shirini, Mohammad Ali Zolfigol, Esmail Mollarazi

ChemInform Vol. 36, No. 42

KBrO3 in the presence of ZrOCl2 · 8H2O can be used as an effective oxidizing agent for the conversion of alcohols to their corresponding carbonyl compounds. All reactions were performed under mild and completely heterogeneous conditions in …

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

Farhad Shirini, Mohammad Ali Zolfigol, B. Mallakpour

ChemInform Vol. 36, No. 42

ChemInformVolume 36, Issue 42 Preparative Organic Chemistry Mild and Efficient Procedure for Acetylation and Formylation of Alcohols in the Presence of Mg(HSO4)2. F. Shirini, F. Shirini Dep. Chem., Fac. Sci., Guilan Univ., Rasht, IranSearch…

Al(HSO4)3as an Efficient Reagent for the Selective Trimethylsilylation of Primary Alcohols Under Solvent-Free Conditions

Farhad Shirini, Mohammad Ali Zolfigol, Masoumeh Abedini

Phosphorus, sulfur, and silicon and the related elements Vol. 180, No. 10, 2299–2302

Primary alcohols are selectively trimethylsilylated using Hexamethyldisilazane (HMDS) in the presence of a catalytic amount of Al(HSO 4 ) 3 under solvent free conditions.

A Novel Method for the One‐Pot Three‐Component Synthesis of 2,3‐Dihydroquinazolin‐4(1H)‐ones.

Peyman Salehi, Minoo Dabiri, Mohammad Ali Zolfigol, Mostafa Baghbanzadeh

ChemInform Vol. 36, No. 41

Abstract For Abstract see ChemInform Abstract in Full Text.

Spectrophotometric Study of Charge Transfer Complexes of Tetraethyleneglycol-bis-(8-quinolyl)ether with ICl3 in some Nonaqueous Solvents

Tayyebeh Madrakian, Marzieh Torabbeigi, Mohammad Ali Zolfigol

Journal of Inclusion Phenomena and Macrocyclic Chemistry Vol. 53, No. 3-4, 177–181

Silica Chromate as an Oxidizing Agent for the Chemoselective Oxidation of Alcohols and the Oxidative Deprotection of Trimethylsilyl Ethers.

Mohammad Ali Zolfigol, Farhad Shirini, Iraj Mohammadpoor‐Baltork, Arash Choghamarani, Maryam Hajjami, Abdol M. Sedaghat

ChemInform Vol. 36, No. 39

Abstract For Abstract see ChemInform Abstract in Full Text.

Separation, preconcentration and determination of silver ion from water samples using silica gel modified with 2,4,6-trimorpholino-1,3,5-triazin

Tayyebeh Madrakian, Abbas Afkhami, Mohammad Ali Zolfigol, Mohammad Solgi

Journal of Hazardous Materials Vol. 128, No. 1, 67–72

A Green Approach to the Synthesis of 2,3‐Dihydropyrimidin‐2(1H)‐ones by Uronium Hydrogensulfate under Solvent‐Free Conditions.

Peyman Salehi, Minoo Dabiri, Mohammad Ali Zolfigol, Mostafa Baghbanzadeh

ChemInform Vol. 36, No. 38

Abstract For Abstract see ChemInform Abstract in Full Text.

Chromium Trioxide Supported on NaHSO4.H2O: Simple Oxidation of Alcohols in Solution and Solvent free Conditions

Farhad Shirini, Mohammad Ali Zolfigol, Seyed Ali Torabi

Letters in Organic Chemistry Vol. 2, No. 6, 544–546

Alcohols are conveniently converted to their corresponding carbonyl compounds with CrO3 supported on NaHSO4.H2O in solution and under solvent free conditions. Keywords: alcohols, chromium trioxide, carbonyl compounds, oxidation, nahso.h, so…

Al(HSO4)3 as an efficient catalyst for acetalization of carbonyl compounds under heterogeneous or solvent -free conditions

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

Journal of the Brazilian Chemical Society Vol. 16, No. 4, 877–880

Al(HSO4)3 as a solid acid was applied for acetalization of carbonyl compounds at room temperature and under solvent-free conditions with good to excellent yields. The cheapness and availability of this reagent with easy procedure and work-u…

Oxidation of Urazoles with 1,3‐Dihalo‐5,5‐dimethylhydantoin, Both in Solution and under Solvent‐Free Conditions.

Mohammad Ali Zolfigol, Hossein Nasr‐Isfahani, Shadpour Mallakpour, Maliheh Safaiee

ChemInform Vol. 36, No. 33

1,3-dichloro-5,5-dimethylhydantoin (DCH) and 1,3-dibromo-5,5-dimethylhydantoin (DBH) were used as effective oxidizing agents for the oxidation of urazoles and bis-urazoles to their corresponding triazolinediones under mild conditions at roo…

Molybdatophosphoric Acid/NaNO2/Wet SiO2 as an Efficient System for Oxidation of 1,4‐Dihydropyridines under Mild and Heterogeneous Conditions.

Khodabakhsh Niknam, Mohammad Ali Zolfigol, Seyed Mehdi Razavian, Iraj Mohammadpoor‐Baltork

ChemInform Vol. 36, No. 30

Abstract For Abstract see ChemInform Abstract in Full Text.

Solvent-Free Synthesis of Some New PolyAromatic Hydrocarbons by Diels-Alder Reaction of Tetracyclone

Ardeshir Khazaei, Mohammad Ali Zolfigol, Abbas Amini Manesh

Journal of the Chinese Chemical Society Vol. 52, No. 3, 515–518

Diels-Alder reactions of tetracyclone with various dienophiles under solvent free conditions were studied. In the case of cyclic dienophiles that exhibit more steric hindrance, decarbonylation of [4+2] adducts were carried out.

Novel, Mild and Chemoselective Dehydrogenation of 2‐Imidazolines with Trichloroisocyanuric Acid.

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

ChemInform Vol. 36, No. 20

Abstract For Abstract see ChemInform Abstract in Full Text.

A Mild and Efficient Method for the Acetylation of Alcohols.

Farhad Shirini, Mohammad Ali Zolfigol, A. Safari

ChemInform Vol. 36, No. 19

Abstract For Abstract see ChemInform Abstract in Full Text.

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

ChemInform Vol. 36, No. 19

Abstract For Abstract see ChemInform Abstract in Full Text.