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Journal articles on the topic 'Pyridinium chlorochromate'

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Published: 5 June 2025

Last updated: 1 August 2025

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1

Jain, Sapana, B. L. Hiran, and C. V. Bhatt. "Oxidation of Some Aliphatic Alcohols by Pyridinium Chlorochromate -Kinetics and Mechanism." E-Journal of Chemistry 6, no. 1 (2009): 237–46. http://dx.doi.org/10.1155/2009/907071.

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Kinetics of oxidation of some aliphatic primary and secondary alcoholsviz.,ethanol, propan-1-ol, propan-2-ol, butan-1-ol, butan-2-ol and 2-methyl butanol by pyridinium chlorochromate (PCC) have been studied in water- perchloric acid medium. The reaction shows first order dependence with respect to pyridinium chlorochromate [PCC] and hydrogen ion [H+]. The rate of oxidation decreases with increase in dielectric constant of solvent suggests ion-dipole interaction. Activation parameters have been evaluated. Products are carbonyl compounds and free radical absence was proved. A tentative mechanism

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2

Pandey, Jitendra. "An Analytical Studies of Pyridinium Chlorochromate Oxidation Species." Journal of Advances and Scholarly Researches in Allied Education 21, no. 7 (2024): 59–62. https://doi.org/10.29070/2z06tk04.

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A study has been analyzed the “Pyridinium Chlorochromate Oxidation Species.” The method was analysed on reaction initial reaction of pyridinium chlorochromate. Further, This reaction has a mostly [cysteine] dependent effect. So, the plot study has been taken from 1/k` VS 1/[cysteine] It is a straight line with a positive slope and intersected at the valence axis, providing kinetic evidence for the complexation of cysteine with reactive species. And the Chromium (III), It was determined that one of the products had no effect on the vaccine. As [H+] increases, the reaction increases and the [H

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3

Viana, Hugo, Elisabete P. Carreiro, Albertino Goth, et al. "Sequential alcohol oxidation/putative homo Claisen–Tishchenko-type reaction to give esters: a key process in accessing novel biologically active lactone macrocycles." RSC Advances 6, no. 68 (2016): 63214–23. http://dx.doi.org/10.1039/c6ra07547a.

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4

Chakraborty, Vaishali, and Manobjyoti Bordoloi. "Deoximation by Pyridinium Chlorochromate under Microwave Irradiation." Journal of Chemical Research 23, no. 2 (1999): 120–21. http://dx.doi.org/10.1177/174751989902300227.

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5

Chakraborty, Vaishali, and Manobjyoti Bordoloi. "Microwave-assisted Oxidation of Alcohols by Pyridinium Chlorochromate." Journal of Chemical Research 23, no. 2 (1999): 118–19. http://dx.doi.org/10.1177/174751989902300226.

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6

Palaniappan, S., and C. A. Amarnath. "Pyridinium chlorochromate oxidation route to polyaniline." Polymers for Advanced Technologies 14, no. 2 (2003): 122–28. http://dx.doi.org/10.1002/pat.339.

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7

R, GURUMURTHY, MANGALAM G, RAJASEKAR V., and SATHIYANARAYANAN K. "Kinetics and Mechanism of Oxidation of Aromatic Anil by Pyridinium Chlorochromate." Journal of Indian Chemical Society Vol. 72, Jun 1995 (1995): 417–19. https://doi.org/10.5281/zenodo.5905011.

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Department of Chemistry, Annamalai University, Annamalamagar-608 002 <em>Manuscript received 24 August 1993, revised 13 December 1993, accepted 31 December 1993</em> Kinetics and Mechanism of Oxidation of Aromatic Anil by Pyridinium Chlorochromate

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8

Singh, Kamaljit, and Kawaljit Singh. "An Efficacious Protocol for the Oxidation of 3,4-Dihydropyrimidin-2(1H)-ones using Pyridinium Chlorochromate as Catalyst." Australian Journal of Chemistry 61, no. 11 (2008): 910. http://dx.doi.org/10.1071/ch07432.

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4-Unsubstituted as well as 4,6-aryl/alkyl-3,4-dihydropyrimidin-2(1H)-ones were oxidized under neutral conditions using pyridinium chlorochromate to obtain the corresponding pyrimidin-2(1H)-ones in a synthetically useful manner.

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9

(Miss), SHAMI JHA, and L. AGRAWAL G. "Kinetics and Mechanism of Oxidation of Pinacol by Pyridinium Chlorochromate." Journal of Indian Chemical Society Vol. 67, Dec 1990 (1990): 960–62. https://doi.org/10.5281/zenodo.6257193.

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Department of Chemistry, Dr. H. S. Gour Vishwavidyalaya, Sagar-470 003 <em>Manuscript received 21 July 1989, revised 6 March 1990, accepted. 21 November 1990</em> The oxidation of pinacol·(2,3-dimethyl·2,3-butanediol) by pyridinium chlorochromate (pcc) in nitrobenzene-dichloromethane solution have been examined kinetically. The reaction is of first order with respect to (pcc) and [pinacol]. The rate of reaction decrease  with increasing proportion of nitrobenzene in solution. The intluence of ionic strength could not be carried out because of non aqueous mediu

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10

Parish, Edward J., Sarawanee Chitrakorn, and Tsao-Yi Wei. "Pyridinium Chlorochromate-Mediated Allylic and Benzylic Oxidation." Synthetic Communications 16, no. 11 (1986): 1371–75. http://dx.doi.org/10.1080/00397918608056385.

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11

Hosseinzadeh, Rahman, Mahmood Tajbakhsh, and Hossein Vahedi. "Selective Oxidation of Methylarenes with Pyridinium Chlorochromate." Synlett, no. 18 (2005): 2769–70. http://dx.doi.org/10.1055/s-2005-917118.

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12

Chakraborty, Vaishali, and Manobjyoti Bordoloi. "Deoximation by Pyridinium Chlorochromate under Microwave Irradiation." Journal of Chemical Research, no. 2 (1999): 120–21. http://dx.doi.org/10.1039/a803979h.

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13

Qianchao, Pi Shiqing, and Chen Xinzhi. "Improved Synthesis of Methyl 3-oxo-2,6,6-trimethylcyclohex-1-ene-1-carboxylate, an A-ring intermediate for (±)strigol." Journal of Chemical Research 2007, no. 8 (2007): 494–96. http://dx.doi.org/10.3184/030823407x240881.

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Methyl 3-oxo-2,6,6-trimethylcyclohex-1-ene-1-carboxylate was synthesised over eight steps from the starting material of citral instead of α-ionone. KMnO4, HC(OEt)3 and O2/TEMPO/CuCl were substituted for NaIO4, CH3I and pyridinium chlorochromate, respectively. Every step was simplified and gave a 48% overall yield. The procedure is suitable for large scale production.

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14

Bonadies, Francesco, and Carlo Bonini. "Oxidation of Active Methylene Compounds by Pyridinium Chlorochromate." Synthetic Communications 18, no. 13 (1988): 1573–80. http://dx.doi.org/10.1080/00397918808081315.

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15

Chakraborty, Vaishali, and Manobjyoti Bordoloi. "Microwave-assisted Oxidation of Alcohols by Pyridinium Chlorochromate." Journal of Chemical Research, no. 2 (1999): 118–19. http://dx.doi.org/10.1039/a803978j.

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16

AGRAWAL, G. L., and S. TIWARI. "ChemInform Abstract: Pyridinium Chlorochromate: Kinetic and Synthetic Aspects." ChemInform 23, no. 40 (2010): no. http://dx.doi.org/10.1002/chin.199240305.

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17

Akhtar, Mohammed Shamim, Manju Seth, and Amiya Prasad Bhaduri. "Novel oxidation of tetrasubstituted furans by pyridinium chlorochromate." Journal of Heterocyclic Chemistry 22, no. 5 (1985): 1323–24. http://dx.doi.org/10.1002/jhet.5570220535.

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18

Senapati, Sadhana, Smrutiprava Das, P. Mohanty, and A. Patnaik. "Kinetics and mechanism of electron transfer to pyridinium chlorochromate (VI) from sulfur containing amino acid, L-cysteine in aqueous and micellar media." Polish Journal of Chemical Technology 13, no. 2 (2011): 6–10. http://dx.doi.org/10.2478/v10026-011-0016-7.

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Kinetics and mechanism of electron transfer to pyridinium chlorochromate (VI) from sulfur containing amino acid, L-cysteine in aqueous and micellar media The electron transfer reaction of L-cysteine (RSH) with pyridinium chlorochromate (PCC) has been studied spectrophotometrically over the range 2.0 ≤ 103 [RSH] ≤ 6.0; 0.01 ≤ [H+] ≤ 0.2; 298 ≤ T ≤ 318 K and I = 0.3 mol dm-3 (NaClO4). The electron transfer reaction has also been carried out in the presence of anionic, cationic and neutral micelle. The reaction in acid medium is strongly catalyzed by changing [SDS]T (sodium dodecyl sulfate) up to

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19

Parish, Edward J., та Tsao-Yi Wei. "Allylic Oxidation of Δ5-Steroids with Pyridinium Chlorochromate (PCC) and Pyridinium Dichromate (PDC)". Synthetic Communications 17, № 10 (1987): 1227–33. http://dx.doi.org/10.1080/00397918708063974.

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20

Zaccaria, Sabrina, Nicola Borbone, Giorgia Oliviero, Stefano D’Errico, and Vincenzo Piccialli. "Pyridinium chlorochromate chemistry. New insight into oxidation of tetrahydrofurans." Arkivoc 2017, no. 4 (2017): 273–90. http://dx.doi.org/10.24820/ark.5550190.p010.063.

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21

Rathore, Rajendra, Nishi Saxena, and S. Chandrasekaran. "A Convenient Method of Benzylic Oxidation with Pyridinium Chlorochromate." Synthetic Communications 16, no. 12 (1986): 1493–98. http://dx.doi.org/10.1080/00397918608056400.

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22

Paja̧k, Z., B. Szafrańska, P. Czarnecki, J. Mayer, and A. Kozak. "Polymorphic phase transitions and molecular motion in pyridinium chlorochromate." Chemical Physics Letters 274, no. 1-3 (1997): 106–11. http://dx.doi.org/10.1016/s0009-2614(97)00653-2.

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23

SINGH, J. V., ANUPAM AWASTHI, DIPTI DIPTI, ASHISH TOMAR, and G. L. AGRAWAL. "Kinetics of Oxidation of D-Galactose by Pyridinium Chlorochromate." Oriental Journal Of Chemistry 28, no. 3 (2012): 1399–402. http://dx.doi.org/10.13005/ojc/280340.

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24

Chakraborty, Vaishali, and Manobjyoti Bordoloi. "ChemInform Abstract: Deoximation by Pyridinium Chlorochromate under Microwave Irradiation." ChemInform 30, no. 31 (2010): no. http://dx.doi.org/10.1002/chin.199931087.

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25

Sohilait, Hanoch J. "OXIDATION OF BENZYLIC SECONDARY ALCOHOL WITH PYRIDINIUM CHLOROCHROMATE-ALUMINA (PCC-Al₂O₃)." Indonesian Journal of Chemistry 8, no. 1 (2010): 91–93. http://dx.doi.org/10.22146/ijc.21658.

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In these studies, Pyridinium chlorochromate-Alumina was used for oxidation of secondary alcohols (safryl alcohol and methyleugenyl alcohol) to ketone. The oxidation of safryl alcohol with PCC-Al2O3 followed by purification by potassium bisulfite yields safryl ketone (62,92%). The oxidation of methyleugenyl alcohol with PCC-Al2O3, followed by purification by potassium bisulfite yields methyleugenyl ketone (68,04%). The elucidation of these products was analyzed by FTIR, 1H-NMR and MS. Keywords : PCC-alumina, secondary alcohols, ketone

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26

VINITA, SHARMA, K. SHARMA PRADEEP, and K. BANERJI KALYAN. "Kinetics and Mechanism of the Oxidation of Methionine by Pyridinium Chlorochromate." Journal of Indian Chemical Society Vol. 74, Aug 1997 (1997): 607–9. https://doi.org/10.5281/zenodo.5891067.

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Department of Chemistry, J. N. V. University, Jodhpur-342 005 <em>Manuscript received 19 March 1996, accepted 17 July 1996</em> The oxidation of methionine by pyridinium chlorochromate (PCC) leads to the formation of the corresponding sulphoxide. The reaction is first order with respect to PCC. Michaelis-Menten type kinetics have been observed with respect to methionine. The reaction has been studied in 19 organic solvents and the solvent effect has been analysed using multiparametric equations. A suitable mechanism has been proposed.

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27

Jain, Sapana, B. L. Hiran, and C. V. Bhatt. "Kinetics and Mechanism of the Oxidation of Lactic Acid and Mandelic Acid by Pyridinium Chlorochromate in Aqueous Acidic Medium." E-Journal of Chemistry 6, no. 1 (2009): 273–80. http://dx.doi.org/10.1155/2009/786890.

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Pyridinium chlorochromate (PCC) act as two electron oxidant in kinetic studies of the oxidation of lactic and mandelic acid in acidic medium. The influence of several factors such as acidity, salts, solvent composition and temperature on the reaction rate has been studied. The reaction shows first order dependence with respect to [PCC] and [H+]. The various thermodynamic parameters have been evaluated. Products as oxoacids and absence of free radical were confirmed. Suitable reaction mechanism has been proposed.

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28

Małuszyńska, Hanna, Piotr Czarnecki, Anna Czarnecka, and Zdzisław Pająk. "Structures and phase transitions in a new ferroelectric – pyridinium chlorochromate – studied by X-ray diffraction, DSC and dielectric methods." Acta Crystallographica Section B Structural Science 68, no. 2 (2012): 128–36. http://dx.doi.org/10.1107/s0108768112005782.

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Pyridinium chlorochromate, [C5H5NH]+[ClCrO3]− (hereafter referred to as PyClCrO3), was studied by X-ray diffraction, differential scanning calorimetry (DSC) and dielectric methods. Studies reveal three reversible phase transitions at 346, 316 and 170 K with the following phase sequence: R\bar 3m (I) → R3m (II) → Cm (III) → Cc (IV), c′ = 2c. PyClCrO3 is the first pyridinium salt in which all four phases have been successfully characterized by a single-crystal X-ray diffraction method. Structural results together with dielectric and calorimetric studies allow the classification of the two interm

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29

Parish, Edward J., Chi Luo, Sarawanee Parish, and Robert W. Heidepriem. "Selective Oxidation of Steroidal Homoallylic Alcohols Using Pyridinium Chlorochromate (PPC)." Synthetic Communications 22, no. 19 (1992): 2839–47. http://dx.doi.org/10.1080/00397919208021550.

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30

Luzzio, Frederick A., Richard W. Fitch, William J. Moore, and Kelli J. Mudd. "A Facile Oxidation of Alcohols Using Pyridinium Chlorochromate/Silica Gel." Journal of Chemical Education 76, no. 7 (1999): 974. http://dx.doi.org/10.1021/ed076p974.

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31

Omastová, Mária, Milan Lazár, and Stanislav Košina. "Oxidative electropolymerization of pyrrole in the presence of pyridinium chlorochromate." Journal of Electroanalytical Chemistry 361, no. 1-2 (1993): 169–75. http://dx.doi.org/10.1016/0022-0728(93)87051-v.

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32

Chakraborty, Vaishali, and Manobjyoti Bordoloi. "ChemInform Abstract: Microwave-Assisted Oxidation of Alcohols by Pyridinium Chlorochromate." ChemInform 30, no. 31 (2010): no. http://dx.doi.org/10.1002/chin.199931067.

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33

Wu, Hsien-Jen, Kai Pan, Ket-Shang Hsia, and Wei-Chi Liu. "An Unprecedented Oxidation Reaction of Cyclopentadiene Derivatives by Pyridinium Chlorochromate." Journal of the Chinese Chemical Society 35, no. 3 (1988): 227–31. http://dx.doi.org/10.1002/jccs.198800033.

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34

Bijyendra, Kumar Dubey, and C. Shukla I. "Application of pyridinium chlorochromate (PCC) for the determination of some important antibiotics." Journal of Indian Chemical Society Vol. 81, May 2004 (2004): 430–32. https://doi.org/10.5281/zenodo.5833174.

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Department of Chemistry University of Allahabad, Allahabad-211 002, India <em>Manuscript received 28 March 2003, revised 24 November 2003, accepted 2 December 2003</em> A quick and convenient method has been developed for determination of some antibiotic drugs in low concentration. Aliquots containing 1-5 mg of the antibiotics are allowed to react with 3 x 10<sup>-2</sup> <em>N</em> pyridinium chlorochromate (PCC) in the presence of 5 <em>N</em> H<sub>2</sub>SO<sub>4</sub> for 5-60 min at RT (25-30°). After the reaction is over, the unconsumed reagent is back determined iodometrically. The

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35

A., Abdul Jameel, and Krishna Pillay M. "Nature of ortho effect in the oxidation of ortho-substituted-benzaldehydes with pyridinium chlorochromate." Journal of Indian Chemical Society Vol. 76, Feb 1999 (1999): 101–3. https://doi.org/10.5281/zenodo.5852439.

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Department of Chemistry, Jamal Mohamed College, Tiruchirappalli-620 020, India Department of Chemistry, Bharathidasan University, Tiruchirappalli-620 024, India <em>Manuscript received 10 February 1998, revised 25 August 1998, accepted 9 September 1998</em> Rate constants for the oxidation reaction of ortlzo-substituted benzaldehydes with pyridinium chlorochromate are correlated with equations log <em>k</em><sub>2</sub>= ασ<sub>1</sub> + β σ<sub>k</sub> + <sup>\(\Psi\)</sup>  v +<em> h</em> log <em>k</em><sub>2</sub>= ασ<sub>1</sub> + β &s

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36

Rupal, Kumbhat, and Sharma Vinita. "Kinetics and mechanism of the oxidation of some unsaturated acids by pyridinium chlorochromate." Journal of India Chemical Society Vol 81, Sep 2004 (2004): 745–49. https://doi.org/10.5281/zenodo.5832678.

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Department of Chemistry, J. N. V. University, Jodhpur 342 005. India <em>Manuscript received 6 January 2004, accepted 10 March 2004</em> The oxidation of maleic, fumaric, crotonic and cinnamic acids by pyridinium chlorochromate (PCC) in dimethylsulphoxide (DMSO) leads to the formation of corresponding epoxide. The reaction is of first order with respect to PCC and the acid. The reaction is catalysed by hydrogen ions. The hydrogen-ion dependence has the form : <em>k</em><sub>obs</sub> =a + b [H<sup>+</sup>]. The oxidation of these acids was studied in nineteen different organic solvents. T

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37

Meenakshisundaram, Subbiah, and Ramakrishnan Markkandan. "Kinetics of edta-catalysed oxidation of some cycloalkanones by pyridinium chlorochromate." Journal of Chemical Research (Miniprint) 2003, no. 11 (2003): 679–80. http://dx.doi.org/10.3184/030823503322862463.

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38

Yang, Yanyan, Ge Wang, Xiaohui Cao, Xilong Yan, and Ligong Chen. "A Mild and Facile Synthesis of Cyclic Imides using Pyridinium Chlorochromate." Journal of Chemical Research 35, no. 11 (2011): 657–58. http://dx.doi.org/10.3184/174751911x13202290249578.

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39

Meenakshisundaram, Subbiah, and Ramakrishnan Markkandan. "Kinetics of edta-catalysed oxidation of some cycloalkanones by pyridinium chlorochromate." Journal of Chemical Research 2003, no. 11 (2003): 679–80. http://dx.doi.org/10.3184/030823403322862879.

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40

Parish, Edward J., Stephen A. Kizito та Robert W. Heidepriem. "A Novel Synthesis of Steroidal Δ4,3,6-Diones Using Pyridinium Chlorochromate (PCC)". Synthetic Communications 23, № 2 (1993): 223–30. http://dx.doi.org/10.1080/00397919308009772.

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41

Cossy, Janine, Samir BouzBouz, Mohamed Laghgar, and Badia Tabyaoui. "Selective cyclopropylcarbinyl rearrangement of tricyclo[5.3.1.0]undecanols induced by pyridinium chlorochromate." Tetrahedron Letters 43, no. 5 (2002): 823–27. http://dx.doi.org/10.1016/s0040-4039(01)02291-2.

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42

Narasimhan, Vikram, Rajendra Rathore, and S. Chandrasekaran. "Highly Selective Oxidative Cleavage of Aryl Substituted Olefins with Pyridinium Chlorochromate." Synthetic Communications 15, no. 9 (1985): 769–74. http://dx.doi.org/10.1080/00397918508063871.

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43

Parish, Edward J., Sarawanee Parish, and Hiroshi Honda. "A Facile Synthesis of Ketones from Organoboranes Using Pyridinium Chlorochromate (PCC)." Synthetic Communications 20, no. 21 (1990): 3265–71. http://dx.doi.org/10.1080/00397919008051557.

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44

Ghosh, Premamoy, and Ganeschandra Pal. "Photopolymerization of methyl methacrylate using pyridinium chlorochromate (PCC) as the photoinitiator." European Polymer Journal 33, no. 10-12 (1997): 1695–700. http://dx.doi.org/10.1016/s0014-3057(97)00035-9.

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45

M. Heravi, Majid, Azadeh Fazeli, and Zeinab Faghihi. "Recent Advances in Application of Pyridinium Chlorochromate (PCC) in Organic Synthesis." Current Organic Synthesis 13, no. 2 (2015): 220–54. http://dx.doi.org/10.2174/1570179412666150402220923.

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46

Cha, Jin Soon, Jong Mi Kim, Joong Hyun Chun, Oh Oun Kwon, Sang Yong Kwon, and Sung Wook Han. "CONVERSION OF ACID CHLORIDES TO ALDEHYDES BY OXIDATION OF ALKOXYALUMINUM INTERMEDIATES WITH PYRIDINIUM CHLOROCHROMATE OR PYRIDINIUM DICHROMATE." Organic Preparations and Procedures International 31, no. 2 (1999): 204–7. http://dx.doi.org/10.1080/00304949909355712.

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47

Nalini, S., R. Udhayakumar, K. Anbarasu, P. Manivannan, and K. Raghu. "Kinetics and mechanism of the oxidation of some cis-Alpha- Phenylcinnamic acids by Pyridinium Chlorochromate." JOURNAL OF ADVANCES IN CHEMISTRY 12, no. 5 (2017): 4434–41. http://dx.doi.org/10.24297/jac.v12i5.5993.

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Oxidation of cis Î±-phenyl cinnamic acids by pyridinium chlorochromate (PCC) was studied in acetic acidâ€“water mixturecontaining perchloric acid. The reaction rate is first order in [PCC] and fractional order in [H+] and has aldehyde as aproduct. The rate of reaction increases with increase in the percentage of acetic acid medium. The reactions exhibit kineticisotope effect. The activation parameters have been evaluated. The added Mn (II) decreases the rate of reaction. Theadded sodium chlorate has no effect on the reaction rate and indicates the absence of ion-ion (or) ion- dipole interactio

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48

Collins, DJ, and AM James. "Preparation of 2-(3-Bromo-1-methylpropyl)-1,3-dioxolan and the Corresponding Chloride From 2-Methylbutyrolactone." Australian Journal of Chemistry 42, no. 1 (1989): 223. http://dx.doi.org/10.1071/ch9890223.

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Lithium aluminium hydride reduction of ethyl 4-chloro-2-methylbutanoate (4a), derived from 3-methyldihydrofuran-2(3H)-one (2-methylbutyrolactone) (1), gave 4-chloro-2-methylbutan-1-ol (5a), oxidation of which with pyridinium chlorochromate afforded 4-chloro-2-methylbutanal (8a). The aldehyde (8a) was converted into 2-(3?-chloro-1′-methylpropyl)-1,3-dioxolan (7a) in 47% overall yield from (1). 2-(3′-Bromo-1′-methyIpropyl)-1,3-dioxolan (7b) was similarly obtained in 49% overall yield from (1). Attempted conversion of 3-methyltetrahydrofuran-2-ol (2) into the corresponding cyclic ethylene acetal

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49

Munna Lal Meena. "Oxidation of threonine by Corey’s reagent: A kinetic study." World Journal of Biology Pharmacy and Health Sciences 18, no. 3 (2024): 395–402. http://dx.doi.org/10.30574/wjbphs.2024.18.3.0578.

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Oxidation of Threonine by pyridinium chlorochromate in DMF-water medium has been studied. The rate of reaction was found to be of first order dependence on [PCC], [Threonine] and [H+]. The Michaelis–Menten type kinetics is observed with respect to Threonine. The increase in the rate of oxidation with increase in acidity indicates the involvement of a protonated chromium (VI) species in the rate-determining step. The product of oxidation has been identified as an aldehyde. The rate of reaction decreased with increase in the polarity of medium indicates that there is involvement of an ion-dipole

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50

Munna, Lal Meena. "Oxidation of threonine by Corey's reagent: A kinetic study." World Journal of Biology Pharmacy and Health Sciences 18, no. 3 (2024): 395–402. https://doi.org/10.5281/zenodo.13767651.

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Abstract:

Oxidation of Threonine by pyridinium chlorochromate in DMF-water medium has been studied. The rate of reaction was found to be of first order dependence on [PCC], [Threonine] and [H+]. The Michaelis–Menten type kinetics is observed with respect to Threonine. The increase in the rate of oxidation with increase in acidity indicates the involvement of a protonated chromium (VI) species in the rate-determining step. The product of oxidation has been identified as an aldehyde. The rate of reaction decreased with increase in the polarity of medium indicates that there is involvement of an ion-

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