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Results tagged with organic-chemistry
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user 104835
Use this tag for questions relating to organic molecules and their properties (structure of organic molecules, spectroscopic properties, reaction mechanisms, stereochemistry etc). DO NOT use this tag as the only tag in your question, as this tag by itself cannot appropriately classify your question. Always use this tag in addition to other more specific tags.
3
votes
What is the chemical reaction between nitric acid and acetic acid?
Concentrated nitric or perchloric acids and their salts will oxidize almost any organic material with some heat or catalyst. Oxidizers and reducers must not be stored together; special care is needed …
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-1
votes
Removing carbon matter from molten beeswax
I think I have a test for zone purification. Fill a narrow cylindrical glass jar [similar to what salad olives come in] with molten wax. Place the covered jar in water heated just above the melting po …
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-1
votes
Removing carbon matter from molten beeswax
I made a comment about zone purification that seems to have been ignored. If the fine particles are actually denser and do settle with gravity a vertical zone purification setup might hasten the separ …
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1
vote
The Role of Acidified Potassium Manganate(VII) in Oxidation of Alcohols
The equation you quote is not a chemical equation. It is a symbolic equation stating that an oxidizing chemical is needed to effect oxidation of an alcohol to an acid. A chemical equation shows the re …
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0
votes
Oxidation of acetophenone to benzoic acid
That Cr[6] compounds oxidize benzylic hydrogens does not mean that they do not oxidize ketones. The presence of a H seems sufficient but not necessary. It depends on the time and conditions. I did my …
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1
vote
Why does alpha-carbon substituents increase the rate of E2 reactions?
You are on to something. Check out the product ratios here: https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Supplemental_Modules_(Organic_Chemistry)/Alkyl_Halides/Properties_of_Alkyl_Halides …
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1
vote
Reactivity towards electrophilic addition reaction among unsaturated cyclohexane derivatives
The reaction rate depends on the energy difference between the state of the substrate and the transition state. The energy of the transition state is close to that of the carbocation but not quite so …
- 2,397
1
vote
Accepted
Why does p-aminophenol oxidize in acid solution
You can read about the quinhydrone electrode here: https://en.wikipedia.org/wiki/Quinhydrone_electrode
This electrode reaction is similar to the oxidation of Para-aminophenol and is measurably reversi …
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2
votes
Accepted
Why does carbanion rearrangement not take place in aldol condensations?
You are comparing an isolated carbanion to a carbanion next to the carbonyl. The latter is much more stable and easily formed because of the partial +charge on the carbonyl carbon and resonance with t …
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0
votes
Oxidation of tert-butyl alcohol with potassium permanganate
Given time and heat acidic permanganate will oxidize almost anything even water! The Baeyer reagent, cold alkaline permanganate was originally a test for alkenes, isolated double bonds; it oxidizes a …
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1
vote
Why does this show E1CB mechanism?
I agree the info is confusing. If the major product is deuterated it implies a rapid exchange at the benzyl position forming a carbanion that did NOT eliminate. The kinetics would be of interest. Exte …
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1
vote
Organic solvents distillation for purification
Purifying solvents can be difficult. I sort of solved it by encountering a local glassblower and devising a minimal holdup system with a Vigreux column. I used a dedicated distilling flask for each so …
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-2
votes
What is the pH of acetone in water?
The exchange with H2O[18] is either acid or base catalyzed because of the amphoteric nature of the carbonyl group. You will have to research the rates in pure water-acetone mixes. Your diagrams seem t …
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4
votes
How to interpret this pair of IR and 1H NMR spectra?
I was spoiled working with a FTIR with digital spectra and libraries. I no longer have access so I can give some bits and pieces. First there is no OH! the blip at 3400 and strong peak at 1730 indica …
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0
votes
Carbocation Stability question
[2] is a protonated ketone, nuff said. [1] is the second step in the pinacol rearrangement and is just about to rearrange to [2] so we really do not know how stable it is. The question to me is whethe …
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