دسترسی یکپارچه به مقالات، کتابها و ارائههای علمی استاد دکتر محمدعلی زلفیگل؛ گردآوریشده از منابع معتبر دانشگاهی
Journal of the Iranian Chemical Society Vol. 7, No. 3, 646–651
DOI: 10.1007/bf03246053Journal of the Iranian Chemical Society Vol. 7, No. 3, 603–607
DOI: 10.1007/bf03246047ChemInform Vol. 41, No. 38
Abstract A very efficient procedure for the protection of alcohols and phenols is presented.
DOI: 10.1002/chin.201038046ChemInform Vol. 41, No. 38
Abstract Advantages of this new method are the ease of preparation and stability of the reagent, the heterogeneous nature of the reaction conditions and the ease of work‐up.
DOI: 10.1002/chin.201038045Synthetic Communications Vol. 40, No. 19, 2954–2962
Bromination of alkenes, alkynes, and aromatic amines has efficiently been carried out at room temperature in short reaction times using HIO3/KBr in CH2Cl2/H2O (1:1) to prepare corresponding brominated compounds in excellent yields.
DOI: 10.1080/00397910903349992Applied Catalysis A General Vol. 386, No. 1-2, 179–187
DOI: 10.1016/j.apcata.2010.07.057ChemInform Vol. 41, No. 32
Abstract Melamine trisulfonic acid efficiently promotes Mom protection of alcohols.
DOI: 10.1002/chin.201032062ChemInform Vol. 41, No. 31
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…
DOI: 10.1002/chin.201031067ChemInform Vol. 41, 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…
DOI: 10.1002/chin.201030115ChemInform Vol. 41, 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…
DOI: 10.1002/chin.201030040Letters in Organic Chemistry Vol. 7, No. 3, 249–254
Mild combination of nitro urea, derived from urea nitrate, and silica sulfuric acid (SiO2OSO3H) might act as an efficient oxidizing media, which could be able to oxidize different types of heterocyclic compounds including urazoles and 1,4-d…
DOI: 10.2174/157017810791112450Synthetic Communications Vol. 40, No. 7, 1022–1028
Melamine trisulfonic acid (MTSA) was easily prepared by the reaction of melamine with neat chlorosulfonic acid at room temperature. This reagent can be used as an efficient catalyst for the acetylation of alcohols, phenols, and amines with …
DOI: 10.1080/00397910903029941Helvetica Chimica Acta Vol. 93, No. 3, 587–594
Abstract A simple method for the in situ generation of iodine using H5IO6/KI has been developed, and its application in silylation of OH group and iodination of aromatic amines is described.
DOI: 10.1002/hlca.200900259Synthetic Communications Vol. 40, No. 6, 910–914
Melamine trisulfonic acid, which is easily prepared by the reaction of melamine with neat chlorosulfonic acid, is able to efficiently catalyze the chemoselective methoxymethylation of alcohols with dimethoxymethane (DMM). All reactions were…
DOI: 10.1080/00397910903026707Phosphorus, sulfur, and silicon and the related elements Vol. 185, No. 3, 573–577
A wide range of aliphatic or aromatic sulfides is selectively oxidized to the corresponding sulfoxides using 1,2-dipyridiniumditribromide-ethane (DPTBE) in a mixture of CH2Cl2/H2O under heterogeneous conditions in moderate to high yields. S…
DOI: 10.1080/10426500902849565ChemInform Vol. 41, No. 10
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…
DOI: 10.1002/chin.201010042Organic Preparations and Procedures International Vol. 42, No. 1, 95–102
The exploitation of ionic liquids as solvents in organic transformations has been reported extensively during the past decade. 1 – 5 The most useful properties of ionic liquids are the ability to d...
DOI: 10.1080/00304940903585495Canadian Journal of Chemistry Vol. 88, No. 2, 164–171
Silica-bonded S-sulfonic acid (SBSSA) was prepared by the reaction of 3-mercaptopropylsilica (MPS) and chlorosulfonic acid in tert-butylmethyl ether, and used as a catalyst for the silylation of hydroxyl groups. A good range of primary, sec…
DOI: 10.1139/v09-162ARKIVOC Vol. 2009, No. 13, 200–210
A combination of iodic acid and potassium iodide has been used for trimethylsilylation of alcohols and phenols in the presence of HMDS and iodination of aromatic amines.The reactions occur very rapidly to provide the products in good to hig…
DOI: 10.3998/ark.5550190.0010.d18Collection of Czechoslovak Chemical Communications Vol. 75, No. 5, 607–615
A very efficient procedure for the protection of alcohols and phenols is presented. The mixture of 1,1,1,3,3,3-hexamethyldisilazane (HMDS) and catalytic amounts of poly(4-vinylpyridinium tribromide) was found to be effective for the trimeth…
DOI: 10.1135/cccc2009560Journal of the Brazilian Chemical Society Vol. 21, No. 1, 33–36
A general and metal-free catalytic oxidation of aliphatic and aromatic sulfides to their corresponding sulfoxides via combination of ammonium nitrate (NH4NO3), supported ammonium hydrogen sulfate on silica gel (NH4HSO4-SiO2) and a catalytic…
DOI: 10.1590/s0103-50532010000100006Journal of the Serbian Chemical Society Vol. 75, No. 3, 307–316
An efficient procedure for the chemoselective oxidation of alkyl (aryl) sulfides to the corresponding sulfoxides using urea hydrogen peroxide (UHP) in the presence of a catalytic amount of molybdatophosphoric acid at room temperature is des…
DOI: 10.2298/jsc1000001hJournal of the Serbian Chemical Society Vol. 75, No. 5, 669–679
A preconcentration method was developed for the determination of trace amounts of Co, Ni, Cd and Zn by atomic absorption spectrometry. The method is based on the retention of the metal cations by naphthalene- 2,4,6-trimorpholino-1,3,5-triaz…
DOI: 10.2298/jsc090404032mChemical Reviews Vol. 110, No. 4, 2250–2293
ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTBis- and Trisindolylmethanes (BIMs and TIMs)†Morteza Shiri*‡, Mohammad Ali Zolfigol§, Hendrik Gerhardus Kruger⊥, and Zahra Tanbakouchian‡View Author Information Department of Chemistry, College of …
DOI: 10.1021/cr900195a