Oxidation by PCC pyridinium chlorochromate

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gents have been developed for use in simple reactions such as oxidation reduc-tion condensation acylation alkylation halogenation the Wittig reaction etc 5 Chromium(VI)-based oxidizing reagents have been extensively used in orga-nic synthesis 6 Among these pyridinium chlorochromate (PCC

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pyridinium chlorochromate is used for the oxidation of

Pyridinium chlorochromate is used for the oxidation of Get the answers you need now! 1 Log in Join now 1 Log in Join now Ask your question Secondary School Chemistry 5 points Pyridinium chlorochromate is used for the oxidation of Ask for details Follow Report by Barsharanidas2010 2 weeks ago Log in to add a comment

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17 5 ALLYLIC AND BENZYLIC OXIDATION

2 oxidation (a) (b) (c) (d) 17 11 In each case give the structure of a starting material that would give the product shown by MnO 2 oxidation (a) (b) (c) 17 12 In each case tell whether oxidation with pyridinium chlorochromate (PCC) and oxidation with MnO 2 would give the same product different products or no reaction Explain (a) (b) (c

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유기화학실험 pulgone from citronellol(oxidation with

PCC (Pyridinium chlorochromate)Mw : 215 56 g/molAppearance : orange crystalline powder Melting point : 205 CCitronellolMolecular formula : C10H20O Mw : 156 27 g/mol Density : 0 855 g/cm3 Boiling point : 222 CCitronellalMw : 154 25 g/molDensity : 0 855 g/cm3Boiling Point : 207 C

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유기화학실험 pulgone from citronellol(oxidation with

PCC (Pyridinium chlorochromate)Mw : 215 56 g/molAppearance : orange crystalline powder Melting point : 205 CCitronellolMolecular formula : C10H20O Mw : 156 27 g/mol Density : 0 855 g/cm3 Boiling point : 222 CCitronellalMw : 154 25 g/molDensity : 0 855 g/cm3Boiling Point : 207 C

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Oxidations

Chromium based oxidation Pyridinium Chlorochromate (PCC) CrO3+6N HCl Cr O O HOCl Pyridine Cr O O OCl N H Orange-yellow crystalline solid Less hygroscopic Preparation: Advantages: (1) Reagent can be used in stoichiometric amounts with substrate (2) It is less hygroscopic So it can be stored for a long time (3) PCC is slightly acidic but can be buffered with NaOAc 12 CH423'Course'on

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Vol 3 Issue 12 December 2014 Study of the Effects

conditions Pyridinium Chlorochromate (PCC) introduced by Corey et al3 is widely used in the oxidation of alcohols Pyridinium flourochromate has a less pronounced acidity and is an effective agent for the oxidation of Plycyclic organic substitutes PFC was developed by Bhatachargee and coworker [2] 4 In 1986 Narayanan and Balasuramaniam5 introduced Pyridinium bromochromate This is an

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OXIDATION OF SOME ALIPHATIC ALDEHYDES BY QUINOLINIUM

pyridinium chlorochromate (PCC)11 and pyridinium fluorochromate (PFC)12 act as two electron oxidants and are reduced to chromium (IV) species determining the oxidation state of chromium by magnetic susceptibility ESR and IR studies Rate-laws The reactions are of

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Organic Oxidation

20 10 2012What is the expected major product resulting from the reaction of benzaldehyde with pyridinium chlorochromate? (Hint: This problem is easier to solve if you write out a complete chemical equation showing all the reactants) a benzoic acid b benzyl alcohol c

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OXIDATIONS 5

Pyridinium Chlorochromate (PCC Corey-Suggs Oxidation) TL 1975 2647 Synthesis 1982 245 (review) CrO3 + 6M HCl + pyridine → pyH+CrO3 Cl- ↓ - Reagent can be used in close to stoichiometric amounts w/ substrate - PCC is slighly acidic but can be buffered w/ NaOAc HO OHC OH O O CHO O O TL 1975 2647 PCC CH 2Cl 2 JACS 1977 99 3864 PCC CH 2Cl 2 OXIDATIONS 7 - Oxidative

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17 5 ALLYLIC AND BENZYLIC OXIDATION

2 oxidation (a) (b) (c) (d) 17 11 In each case give the structure of a starting material that would give the product shown by MnO 2 oxidation (a) (b) (c) 17 12 In each case tell whether oxidation with pyridinium chlorochromate (PCC) and oxidation with MnO 2 would give the same product different products or no reaction Explain (a) (b) (c

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Chlorochromate de pyridinium : dfinition de

Le chlorochromate de pyridinium souvent abrg en PCC est un ractif rougetre utilis pour oxyder les alcools primaires en aldhydes et les alcools secondaires en ctones Contrairement au ractif de Jones il n'oxyde pas jusqu' l' acide carboxylique

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PCCはでするアルコールのクロム

PCCはをすクロムのピリジン クロロクロムピリジニウム(pyridinium chlorochromate: PCC)はクロムのをピリジンにえることによってられる とらおの についてえるブログ Home Oxidation Reduction Rearrangement Other Reaction Contact 2018-01-04 PCCは

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Structure and preparation

Pyridinium chlorochromate (PCC) is a yellow-orange salt with the formula [C 5 H 5 NH] + [CrO 3 Cl] − It is a reagent in organic synthesis used primarily for oxidation of alcohols to form carbonyls A variety of related compounds are known with similar reactivity PCC offers the advantage of the selective oxidation of alcohols to aldehydes or ketones whereas many other reagents are less

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Pyridinium Chlorochromate (PCC)

Pyridinium Chlorochromate (PCC) Corey-Suggs Reagent Chlorochromic acid can by prepared by the dissolution of chromium trioxide in 6 M aq hydrochloric acid Addition of pyridine gives pyridinium chlorochromate as orange crystals The properties of PCC can be compared with those of PDC: it is not particularly hygroscopic is stable commercial available and can be stored PCC is soluble in

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Pyridinium Chlorochromate

However oxidation (pyridinium chlorochromate (PCC) Celite CH 2 Cl 2 88% yield) followed by Luche reduction (NaBH 4 CeCl 3 7H 2 O MeOH 85% yield) provided an efficient means of epimerizing the alcohol 91 Scheme 46 As part of an investigation into new synthetic routes to the important acyclic nucleoside class of antiviral drugs the cross metathesis of 9-allyl-6-chloropurine with 2 2

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Corey

Corey-Suggs PCC Oxidation Corey-Schmidt PDC Oxidation (PCC Oxidation) Efficient oxidation of primary and secondary alcohols to aldehydes and ketones respectively through the use of pyridinium chlorochromate (PCC): You are able to perform searches and obtain result sets but do not currently have access to the full monographs Possible reasons may be: You have not subscribed to this

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OXIDATION

Oxidation refers to an increase in bonds to oxygen and/or decrease in bonds to hydrogen PCC (pyridinium chlorochromate) or PDC (pyridiunium dichromate) in CH 2 Cl 2 oxidizes primary alcohols to aldehydes 2 Jones reagent (CrO 3 H 2 SO 4) or sodium dichromate (Na 2 Cr 2 O 7) oxidizes primary alcohols to carboxylic acids (through the aldehyde and aldehyde hydrate) 3 KMnO 4 NaOH and heat

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Solvent Free Oxidations of Epoxides and Polycyclic

pyridinium chlorochromate (PCC) and zinc chlorochromate nonahydrate (ZCCNH) for the oxidation of varieties of organic substrates under solvent free conditions at room temperature Both reagents are suitable for the oxidation of hydroquinone to benzoquinone with high rates and yields under solvent free conditions Overoxidation of the aldehydes to carboxylic acids has not been observed in the

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Oxidation of alcohols (examples) (video)

26 03 2018And if we wanted to oxidize it only once so that we end up with an aldehyde the best reagent to use for this is something called pyridinium chlorochromate or PCC So let's take a look at the structure of the PCC reagent really fast So pyridinium

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Chlorochromate de pyridinium

Le chlorochromate de pyridinium souvent abrg en PCC est un ractif rougetre utilis pour oxyder les alcools primaires en aldhydes et les alcools secondaires en ctones Contrairement aux oxydations de Jones trioxyde de chrome dans l' acide sulfurique il n'oxyde pas jusqu' l' acide carboxylique

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Chromium Oxidations in Organic Chemistry in SearchWorks

Oxidation of Alcohols With Pyridinium Chlorochromate (PCC) -4 Oxidation of Alcohols With Pyridinium Fluorochromate - 5 Oxidation of Alcohols With Chromium Trioxide-3 5-Dimethylpyrazole Complex -6 Oxidation of Alcohols With 2 2?-Bipyridinium Chlorochromate -7 Oxidation of Benzylic and Ally lic Alcohols With 4-(Dimethylamino)pyridinium Chlorochromate (DMAP * HCrO3Cl) -8 Oxidation

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