eng
Iranian chemical communication
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2883
Synthesis and characterization of Schiff-base polymer derived from 2,5-dichloroaniline and 2-hydroxybenzaldehyde
Milad Kazemnejadi
mkazemnajadi@yahoo.com
1
Aliakbar Dehno Khalaji
ad.khalaji@gu.ac.ir
2
Hossein Mighani
h.mighani@yahoo.com
3
Department of Chemistry, Faculty of Science, Golestan University, P.O. Box 155 Gorgan, Iran
Department of Chemistry, Faculty of Science, Golestan University, Gorgan, Iran
Department of Chemistry, Faculty of Science, Golestan University, P.O. Box 155 Gorgan, Iran
Schiff base sal-2,5-Clan = 2-(2,5-dichlorobenzylideneamino)phenol used as a new precursor for preparation of poly-2-(2,5-dichlorobenzylideneamino)phenol (PDCBAP). In an aqueous alkaline medium, NaOCl oxidant is capable of oxidative poly-condensation reaction (OP). Both sal-2,5-Clan and PDCBAP were characterized by solubility tests, FT-IR, 1H-NMR spectroscopy and TG-DTA studies. FT-IR and 1H-NMR spectrum of PDCBAP indicates the formation of Ar-O-Ar bond. According to TG/DTA curves, PDCBAP demonstrated higher resistance against temperature than sal-2,5-Clan. At optimum reaction conditions, viz. time = 14h, [NaOCl]0 = 0.12 M, [KOH]0 = 0.1 M and T = 90°C, the yield of PDCBAP is 52.17%. Thermal studies indicated that PDCBAP is more stable than sal-2,5-Clan.
https://icc.journals.pnu.ac.ir/article_2883_fcb93ed8ff2c0497061506ec08397325.pdf
Oxidative poly-condensation
spectroscopy
Thermal studies
eng
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2964
Simultaneous determination of Tropaeolin O and brilliant blue in food samples after cloud point extraction
Rouhollah Heydari
1
Farzaneh Bastami
2
Mohammad Hosseini
smhosseini2007@gmail.com
3
Mohammad Alimoradi
4
Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, P.O. BOX 68149-89468, Khorramabad, Iran
Department of Chemistry, Faculty of Sciences, Arak Branch, Islamic Azad University, Arak, Iran
Young Researchers and Elite Club, Arak Branch, Islamic Azad University, Arak, Iran
Department of Chemistry, Faculty of Sciences, Arak Branch, Islamic Azad University, Arak, Iran
In this study, a simple and low-cost method was developed for extraction and pre-concentration of brilliant blue(BB) and Tropaeolin O(TO) in food samples using cloud point extraction (CPE) prior to spectrophotometric determination. The effects of main factors such as pH, surfactant and salt concentrations, incubation time and temperature on the cloud point extraction of both dyes were investigated and optimized. Linear range of calibration curves were obtained in the range of 50–4000 ng mL−1 for BB and 50–5000 ng mL−1 for TO under the optimum conditions. The limit of detection values for BB and TO were 10 and 20ng mL−1, respectively. The relative standard deviation (RSD) values of both dyes for repeated measurments (n=6) were less than 2.2 %. The obtained results demonstrate that the proposed method can be applied satisfactorily to determine these dyes in different food samples.
https://icc.journals.pnu.ac.ir/article_2964_caa9d51e5f08f312b512394a12308f1c.pdf
Brilliant blue
Tropaeolin O
triton X-100
cloud point extraction
spectrophotometric
food samples
eng
Iranian chemical communication
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2979
Benign synthesis of N-aryl-3,10-dihydroacridin-1(2H)-one derivatives via ZnO nanoparticle-catalyzed Knoevenagel condensation/intramolecular enamination reaction
Hamid Saeidian
saeidian1980@gmail.com
1
Farzaneh Moradnia
2
Department of Science, Payame Noor University (PNU), PO Box: 19395-4697, Tehran, Iran
Department of Chemistry, Payame Noor University, P. O. Box 19395-3697, Tehran, Iran.
An efficient construction of 2-(N-arylamino)benzaldehydes and N-aryl-3,10-dihydroacridin-1(2H)-one derivatives starting from 2- hydroxybenzaldehydes has been developed. The synthesis of N-aryl-3,10-dihydroacridin-1(2H)-ones is based on the Knoevenagel condensation of dimedone to various 2-(N-arylamino)benzaldehydes, followed by an intramolecular enamination in the presence of 20 mol% of nanocrystalline ZnO. Moderate to high yields, operation simplicity, and cheap starting materials are the key features of the present method. The structures of the products were confirmed by 1H and 13C NMR spectroscopy and mass spectrometry (EI). Probable mechanisms for the present reactions to account for the formation of 2-(N-arylamino)benzaldehydes 3a-h and N-aryl-3,10-dihydroacridin-1(2H)-one derivatives 4a-h are also reported.
https://icc.journals.pnu.ac.ir/article_2979_5d30686fe2c6b18350da4210f223a489.pdf
N-aryl-3,10-dihydroacridin-1(2H)-ones
2-(N-arylamino)benzaldehydes
ZnO nanoparticles
smiles rearrangement
eng
Iranian chemical communication
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2981
A green synthesis of functionalized thiazol-2(3H)-imine via a three-component tandem reaction in ionic liquid media
Ashraf Sadat Shahvelayati
avelayati@yahoo.com
1
Leila Hajiaghababaei
lhajiaghababaei@yahoo.com
2
Akram Panahi Sarmad
a.panahisarmad64@gmail.com
3
Department of Chemistry, Yadegar-e-Imam Khomeini (RAH) Shahre-rey Branch, Islamic Azad University, Tehran, Iran
Department of Chemistry, Yadegar-e-Imam Khomeini (RAH) Shahre-rey Branch, Islamic Azad University, Tehran, Iran
Department of Chemistry, Yadegar-e-Imam Khomeini (RAH) Shahre-rey Branch, Islamic Azad University, Tehran, Iran
In this research, an efficient synthesis toward 2-(2-((4-Methoxybenzoyl)imino)-4-(4-methoxyphenyl)thiazol-3(2H)-yl)-2-phenylacetic acid via a three-component tandem reaction using aroylisothiocyanate, phenyl glycine, and 4-methoxyphenacyl bromide in an ionic liquid (IL) has been described. 1-Methyl-3-pentylimidazolium bromide (IL) has been employed as a recyclable green solvent. The work-up procedure was fairly simple and the product did not require further purification. The influence of various reaction parameters such as solvent, temperature, and time was examined and among the various solvents such as ethanol, acetonitrile, n-hexane, water, and ionic liquid for synthesis of the final product, the best result was obtained in 1-methyl-3-pentylimidazolium bromide at 50oC for 1 hours.
https://icc.journals.pnu.ac.ir/article_2981_ab7768d8ebaf0ca4776462727a454c8b.pdf
Thiazol-2(3H)-imine
α-bromoketone
ionic liquid
phenyl glycine
tandem reacrion, aroylisothiocyanate
eng
Iranian chemical communication
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3603
N-methyl pyridinium-p-toluene Sulfonate (NMPyTs) catalyzed synthesis of pyrano[2,3-c]pyrazoles
DR. Vinod Kamble
vtkd@rediffmail.com
1
Dr. Giribala Bondle
gmbondle@gmail.com
2
Dr. Sandeep Atkore
satkore25@rediffmail.com
3
Institute of Science, Dept. of Chemistry Nagpur
Dept. of Chemistry Dr. BAMU, Abad.
Dept. of Biochemistry, Dr. BAMU, Abad
Abstarct:A simple one-pot synthesis of pyrano[ 2,3-c]pyrazoles was developed by a three-component reaction of various benzaldehydes, malononitrile and 1-phenyl or hydro-3-methyl-1H-pyrazol-5(4H)-one in the presence of N-methyl pyridinium p-toluene sulfonate (NMPyTs) as a catalyst. All of the synthesized compounds were identified by IR, 1H NMR, 13C NMR and mass spectroscopy techniques. In the mentioned method, the use of thermal condition is avoided. The key advantages of this process are high yields, shorter reaction times, easy work-up, and purification of products by the non-chromatographic method. The synthesis of pyrano[2,3-c] pyrazoles using NMPyTs as an efficient catalyst is the novel methodology work.
https://icc.journals.pnu.ac.ir/article_3603_7b862de36e34fcc84ef09318a0d8f309.pdf
1-Phenyl-3-methyl-1H-pyrazol-5(4H)-one
pyridine
p-toluene methyl sulfonate
malononitrile
eng
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2991
Separation identification and antioxidant evaluation of zingiber officinale essential oil
Ali Saberi
saberi121@gmail.com
1
Mehri Alimohammadi
teh.pnu@gmail.com
2
Department of Chemistry, Payame Noor University, PB BOX 19395-4697 Tehran, Iran
Department of Chemistry, Payame Noor University, PB BOX 19395-4697 Tehran, Iran
Usage of herbal medicine has been under so much attention for many years. They are gradually replacing synthetic drugs in pharmaceutical fields due to their fewer side effects. Nowadays, essential oils are widely used for the treatment of diseases as well as being applied as pesticide. In this study, 32 components of Zingiber essential oil were identified representing 97.42% of the extracted oil by Gas chromatography-mass spectrometry (GC/MS). Antioxidant activity of the extracted oil were evaluated. In this experiment the effect of Zingiber essential oil on oxidation temperature of oleic acid was investigated by using a diffential scanning calorimetric (DSC) instrument.
https://icc.journals.pnu.ac.ir/article_2991_98076eba167bbf287ed54a1633b2eed7.pdf
antioxidant
Identification
essential oil
zingiber officinale
biological activity
eng
Iranian chemical communication
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3001
Application of the extended solvation theory to study the interaction of β-CD with interpolymer of PEO and PAA
Bahman Vasheghani Farahani
b.vasheghanif@gmail.com
1
Golamreza Rezaei Behbahani
grb402003@yahoo.com
2
Monir Shalbafan
m.shalbafan2012@yahoo.com
3
IMMAM KHOMEINI INTERNATHIONAL UNIVERSITY
Imam Khomeini International University
Imam Khomeini International University
Thermodynamic study on the interaction of β-CD with poly ethylene oxide and poly acrylic acid was performed by isothermal titration calorimetry at 298K. when β-CD is added to the interpolymer complex, competition is created between host-guest and Hydrogen bond. Enthalpy of interaction between the β-CD and interpolymer complex was calculated using the extended solvation theory. P=1 Shows that willingness of β-CD to interact with both polymers is identical. The positive values of and show that interpolymer complex are stabilized by β-CD . The process is both enthalpy and entropy-driven. The results show that this interaction is exothermic and increases the interpolymer complex stability.
https://icc.journals.pnu.ac.ir/article_3001_9ebd31fb599dda5442b5b9c0a45bb17e.pdf
β-CD
poly ethylene oxide
poly acrylic acid
isothermal titration calorimetry
eng
Iranian chemical communication
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3614
LaCl3.7H20: An efficient catalyst for one-pot multi-component synthesis of 1,4-polyhydroquinoline derivatives through unsymmetrical Hantzsch reaction
Abhijeet Somwanshi
somwanshiabhijeet179@gmail.com
1
Yashwant Pandit
yashwantbpandit21@gmail.com
2
Akash Gholap
akashgholap1996@gmail.com
3
Rushikesh Ghogare
rushikeshghogare9@gmail.com
4
Shivaji Pandit
akankshapandit2002@yahoo.com
5
Research Centre and Post Graduate Department of Chemistry, PadmashriVikhePatil College of Arts, Science and Commerce Pravaranagar At./Po. Lonikd. Tal.Rahata. Dist. Ahmednagar. 413713. (MS). India. (Affiliated to SavitribaiPhule Pune University, Pune)
Applied Chemistry Division, DIAT-DRDO, Girinagar, Pune. 411025.(MS) India.
Research Centre and Post Graduate Department of Chemistry, PadmashriVikhe Patil College of Arts, Science and Commerce Pravaranagar At./Po. Lonikd. Tal.Rahata. Dist. Ahmednagar. 413713. (MS). India. (Affiliated to Savitribai Phule Pune University, Pune)
Research Centre and Post Graduate Department of Chemistry, Padmashri Vikhe Patil College of Arts, Science and Commerce Pravaranagar At./Po. Lonikd. Tal.Rahata. Dist. Ahmednagar. 413713. (MS). India. (Affiliated to Savitribai Phule Pune University, Pune)
Post Graduate and Research Centre, Department of Chemistry, Padmashri Vikhe Patil College of Arts, Science and Commerce Pravaranagar, (Loni kd) Tal. Rahata. Dist. Ahmednagar 413713 (MS) India.
An efficient one pot multi component synthesis of 1, 4-Polyhydroquinoline derivatives through unsymmetrical Hantzsch reaction using lanthanum chloride heptahydrate (LaCl3.7H2O) from an aromatic aldehyde, ethyl acetoacetate, dimedone and ammonium acetate as a nitrogen precursor in ethanol at room temperature is described. In the present work we report lanthanum chloride heptahydrate remarkably non-toxic in nature and ease of handling we explored the utility of lanthanum chloride as a catalyst for the synthesis of 1, 4-polyhydroquinoline derivatives. We newly report p-N, N-dimethylamino-cinnamaldehyde and m-chlorobenzaldehyde for the synthesis of 1, 4-Polyhydroquinoline derivatives through unsymmetrical Hantzsch reaction and was characterized by IR and 1HNMR spectroscopic methods.
https://icc.journals.pnu.ac.ir/article_3614_0ef205c0bfd44c56572961199a15a4f5.pdf
Hantzsch reaction
lanthanum chloride heptahydrate
Polyhydroquinoline derivatives
Aromatic aldehydes
eng
Iranian chemical communication
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3004
Theoretical study on the mechanism of stable phosphorus ylides derived from 5-aminoindazole in the presence of different dialkyl acetyelenedicarboxylates
Mohammad Zakarianezhad
m.zakarianejad@yahoo.com
1
Motahare Shool
s.motahare@yahoo.com
2
Payam Noor University
Payam Noor University
In the recent work, the reaction mechanism between triphenylphosphine 1, dialkyl acetylenedicarboxylates 2 in the presence of NH-acid, such as 5-aminoindazole 3 were investigated theoretically. Quantum mechanical studies were performed for evaluation of potential energy surfaces of all structures participated in the reaction mechanism both in gas phase and in dichloromethane. The first step of all reactions was recognized as a rate-determining step in the reaction mechanism. All the possible structures partipated on the reaction coordinate were well predicted. Quantum mechanical calculations were clarified how the ylides exist in solution as a mixture of two geometrical isomers (Z- and E-) as a minor or major forms.
https://icc.journals.pnu.ac.ir/article_3004_46fcf32e21feb4752648f98e4be54cb3.pdf
NH-acid
theoretical study
Z- and E-rotamers
5-aminoindazole
triphenylphosphine
eng
Iranian chemical communication
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3024
1,3-Dichloro-5,5-dimethyl hydantoin and Poly N,N′-dibromo-N-ethyl naphthyl-2,7-disulfonamide as efficient catalysts for the methoxymethylation of alcohols under solvent-free conditions
Abbas Amini Manesh
a_aminima@yahoo.com
1
Ardeshir Khazaei
khazaei_1326@yahoo.com
2
Maedeh Gohari
ghohari_1375@yahoo.com
3
Mahdieh Chegeni
ghegni_1988@gmail.com
4
Shahnaz Saednia
saednia_2016@yahoo.com
5
Payame Noor University, Hamedan
Faculty of Chemistry, Bu-Ali Sina University, P.O. Box 651783868, Hamedan, Iran
Department of Chemistry, Payame Noor University, 19395-4697 Tehran, I. R. of Iran
Department of Chemistry, Faculty of Science, Ayatollah ozma Boroujerdi University, Boroujerd, Iran
Young Researchers & Elites Club, Toyserkan Branch, Islamic Azad University, Toyserkan, Iran
Methoxymethylation of a variety of alcohols was performed using formaldehyde dimethyl acetal in the presence of 1,3-dichloro-5,5-dimethyl hydantoin [DCDMH] and Poly N,N′-dibromo-N-ethyl naphthyl-2,7-disulfonamide [PBNS] as catalysts at room temperature and under solvent-free conditions. Our experiments show that primary and secondary alcohols can be smoothly converted into the corresponding MOM-ethers in excellent yields. The methoxymethyl ethers (MOM-ethers) were obtained with good to excellent yields. 1,3-Dichloro-5,5-dimethyl hydantoin [DCDMH] and Poly N,N′-dibromo-N-ethyl naphthyl-2,7-disulfonamide [PBNS] effectively catalyzed the methoxymethylation of alcohols with dimethoxymethane at ambient temperature. The notable advantages of this method are mild reaction conditions, high yields, cheapness, safety and eco-friendliness, and recyclability of the catalysts.
https://icc.journals.pnu.ac.ir/article_3024_d86e1acd9727bc7dcd9ab5e6bff99b1c.pdf
Methoxymethylation
alcohols
DCDMH
PBNS
solvent-free conditions
eng
Iranian chemical communication
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3678
Water quality and sedimentary analyses of Siddheshwar dam (India) for assessing irrigational suitability
Parveen Rajjak Shaikh
shaikh_parveen100@yahoo.com
1
Isak Rajjak Shaikh
isak@india.com
2
Arjun Bapurao Bhosle
abbkandlikar@gmail.com
3
SWAMI RAMANAND TEERTH MARATHWADA UNIVERSITY (SRTMU), NANDED, INDIA
SWAMI RAMANAND TEERTH MARATHWADA UNIVERSITY (SRTMU) NANDED - 431605. INDIA
SWAMI RAMANAND TEERTH MARATHWADA UNIVERSITY (SRTMUN), NANDED, INDIA
The physico-chemical properties of water and sediments therein were analyzed for assessing the suitability of Siddheshwar dam (India) waters for irrigation purpose. The physical parameters include total dissolved solids and electrical conductivity. The chemical parameters studied include pH, free carbon dioxide, total hardness, calcium hardness, magnesium hardness, phenolphthalein alkalinity, total alkalinity, biochemical oxygen demand and salinity. The present research was undertaken to monitor the irrigational suitability of this water body over the period of June 2009 to May 2010 by Sodium Absorption Ration (SAR), Magnesium Ratio (MR), Residual Sodium Carbonate (RSC), Soluble Sodium Percentage (SSP), Residual Sodium Bicarbonate (RSBC), Kelly’s Ratio (KR) and Permeability Index (PI) parameters. The UV-Spectrophotometer determined the concentrations of heavy metals such as iron, zinc, chromium and manganese. The sediments’ physico-chemical characteristics like temperature, conductivity, pH, % carbon, organic matter and phosphate have been detected by using standard methods. It is observed that the sediments are in a complex milieu with the overlying water in the aquatic ecosystem and they affect water chemistry and get affected by it. The water quality is found good and it is therefore safe for irrigation.
https://icc.journals.pnu.ac.ir/article_3678_14db5e07456f6f9c8d22e121e24f3b83.pdf
Siddheshwar dam (India)
irrigation water quality
permissible limit
sediment, UV – spectrophotometer
eng
Iranian chemical communication
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2882
H3PW12O40 as an efficient catalyst for one-pot- tricomponent synthesis of chromeno[4,3-b]quinolones under microwave irradiation
Radineh Motamedi
mot.chemist@gmail.com
1
Sara Sobhani
sobhanisara@yahoo.com
2
Farshid Barani
f_barani@yahoo.com
3
aDepartment of Chemistry, School of Sciences, Payam Noor University, PB BOX 19395-4697 Tehran, Iran
Department of Chemistry, University of Birjand , Birjand, Iran.
Department of Chemistry, University of Birjand , Birjand, Iran.
Some Chromeno[4,3-b]quinoline derivatives were synthesized in a tricomponents one-pot reaction of 1,3-cyclohexadione arylaldehydes and 4-aminocoumarin under Microwave irradiation in the solventless system by using a heteropolyacid catalyst ,H3[PW12O40] in 80-95% yields and high rates. The shorter reaction times, one-pot, good yields, simple work-up procedure and environmentally friendly conditions are the main advantages of this method compared to the two step method. Heteropolyacid is separated by filtration and the products were purified by flash column chromatography. The reactions were monitored by TLC and subsequent work-up afforded a single compound by TLC in each case. The product was identified by its 1H NMR, mass and IR spectra, which were compared to those reported previously.
https://icc.journals.pnu.ac.ir/article_2882_3c05169724718613ed225d32fd1893ee.pdf
Chromeno[4
3-b]quinoline
heteropolyacid
1
4-dihydropyridines
eng
Iranian chemical communication
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3763
Synthesis, biological and molecular modeling studies of macrocyclic complexes of trivalent metal ions
Vikas Sangwan
vikassangwan616@gmail.com
1
Dharam Pal Singh
dpsinghchem@gmail.com
2
nit kurukshetra
nit,kurukshetra
The macrocyclic complexes of biological importance with power transition metals are synthesized by template methodology leading to the formation of the complex [MLX] X2; where L is macrocyclic ligand derived from 3,4-diaminotoluene, 2,4-thiazolidinedione, M=Cr (III) and Fe(III) X is Cl-, CH3COO- or NO3_.Characterisation of these complexes are through with the assistance of elemental analyses(CHN), molar conductance measurements, magnetic susceptiblities measurements and infrared spectral studies. Molecular modelling was done by using Avagadro 1.01 progarm and optimised geometry in which energy calculations of macrocyclic complexes were determined. Synthesised complexes were also screened for their biological activities such as antimicrobial,antifungal and antioxidant activities.
https://icc.journals.pnu.ac.ir/article_3763_bbc504965517373ad5fbdd4b2fe02879.pdf
Macrocyclic
antimicrobial
modeling
template methodology
eng
Iranian chemical communication
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3773
Reusable Silica supported Perchloric acid and potassium bisulphate as green catalysts for thiocyanation of aromatic compounds under solvent free conditions
Chinna Rajanna Kamatala
kcrajannaou@yahoo.com
1
Hemanth Sriram Y.
hemanthsriram87@gmail.com
2
Satish Kumar Mukka
satishchemlit@gmail.com
3
Venkateswarlu Marri
drmarrichemlit@gmail.com
4
Touheeth Fatima
touheethchemlitt@gmail.com
5
Sai Sudhakar Mukka
mukkasatish4028@gmail.com
6
Madhusudan Raju R.
rmsrajuou@gmail.com
7
Department of Chemistry,
Osmania University,
Hyderabad (T.S)-500007
India
Department of Chemistry Osmania University Hyederabad -(T.S) 500007 India
Department of Chemistry Osmania University Hyderabad-(T.S) India
Department of Chemistry Osmania Univerity Hyderabad-(T.S) India
Department of Chemistry Osmania University Hyderabad -(T.S) India
School of Chemistry BITS, Pilani, Hyderabad
Department of Chemistry Osmania University Hyderabad-T.S India
Reusable silica supported perchloric acid and potassium bisulphate have been prepared and explored as green catalysts for thiocyanation of aromatic compounds under conventional and solvent free microwave assisted conditions. The microwave assisted protocol exhibited remarkable rate accelerations and offered selective thiocyanation of aromatic and hetero aromatic compounds in good yields. Reaction times observed in conventional methods range of 2.0 to 6.0 hours, which reduced to only few minutes (1 to 3 min) in microwave assisted reactions. The developed protocols are also promising and comparable with the existing procedures. Prepared catalysts could be easily recycled for five time with a reproducible efficiency.
https://icc.journals.pnu.ac.ir/article_3773_daeb0cb9c86f0b5a4ec796a057ce84aa.pdf
Silica supported Potassium bisulfate
silica supported HClO4
ammonium thiocyanate
selective thiocyanation
solvent free microwave assisted reactions
rate accelerations