All Questions
Tagged with reactivity reaction-mechanism
16
questions with no upvoted or accepted answers
7
votes
0
answers
239
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Solve this chemical or biological mystery
I hope this is the best place to pose this unique question. Please forgive me if it's not.
I went into a closet to get a prescription medication that was filled about a year ago.
The label on the ...
4
votes
0
answers
75
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How should the reactivity of 1-propanesulfonyl chloride be expected to compare to tosyl chloride for sulfonylation?
I've come across some scientific literature (e.g., https://doi.org/10.1021/jm400751p) that notably feature 1-propanesulfonyl chloride (PsCl) in the selective activation of hydroxy groups, such as a ...
- 111
4
votes
1
answer
3k
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Reactivity of different alcohols with NaNH2 and CH3I
Identify the final product (B) in the following reaction:
I'm not sure how $\ce{NaNH2}$ and $\ce{CH3I}$ will react with the different types of alcohol present here. According to my solution,ether was ...
- 105
3
votes
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answers
101
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Competition between aromatic sulphonation and nitration
Say you take a substituted benzene* and react it with oleum and nitric acid. Would it result in a nitrated ring, a sulphonated ring, or some sort of a combination?
Thinking about it in terms of the ...
- 1,134
3
votes
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510
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Why are “diene” structures in the C-ring of anthocyanins singled out for their singlet-oxygen quenching ability?
Anthocyanins are a class of water-soluble vacuolar pigments. They are sensitive to pH, and can undergo a series of structural changes according to a pH-dependent equilibrium as illustrated in Figure 1....
- 71
3
votes
0
answers
87
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Grignard reaction - exchange of groups
Why is this reaction successful:
Why doesn't metal-halide exchange occur easily to get Ar-MgCl and R-Br?
- 14.4k
2
votes
0
answers
240
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Can activated charcoal retain adsorbtion properties even when submerged in liquids?
This is following a question on Skeptics Stackexchange, where apparently medical science claims that activated charcoal can adsorb poison when ingested.
One of the members posted a related question on ...
- 123
2
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0
answers
330
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Electrophilic substitution in phenyl alkyl ether
Phenylalkyl ethers undergo usual halogenation in the benzene ring, e.g., anisole undergoes bromination with bromine in ethanoic acid even in the absence of iron (III) bromide catalyst.
Why do we use ...
- 3,487
2
votes
0
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331
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Why are trifluoromethyl diazirines so stable?
Why are trifluoromethyl diazirines so stable?
Trifluoromethyl diazirines stability is well documented, however I am yet to find an explanation of why...
Can it be homoaromatic or even aromatic?
2 pie ...
- 21
1
vote
0
answers
42
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Reactivity of Alkyl Halides with E2 with same number of substituents in the end
I have a question regarding the reactivity of alkyl halide for E2. I know that the general rule is tertiary alkyl halide reacts the fastest with E2, and primary alkyl halide reacts the slowest.
I was ...
- 105
1
vote
0
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75
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Order of radical dimerization ability
In a question I came across recently, it was asked to arrange the following radicals in the ascending order of dimerization ability.
I have read about the triphenylmethyl radical undergoing Gomberg ...
- 371
1
vote
0
answers
89
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Red Compound from Glycine and Glycerol?
I got an unexpected reaction which I'm trying to explain to myself:
I mixed 10 parts glycerol with 1 part glycine at ~90C and to my great surprise the mixture turned from transparent to a tint of red. ...
- 1,097
1
vote
0
answers
593
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Mechanism of Bis-decarboxylation of α,β-dicarboxylic acid
According to an internal test series in FIITJEE, it was given that the following compound decarboxylates on heating,
I know that β-keto acids undergo decarboxylation on heating, but I was not sure ...
- 3,071
0
votes
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46
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How does the Eschweiler Clarke reaction occur with sodium cyanoborohydride as a reducing agent?
I am specifically confused with 2 concepts.
How sodium cyanoborohydride acts as a reducing agent. I read that it acts as a source of hydride but I am not sure how this works. If anything, I assumed ...
- 9
0
votes
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31
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Improve the leaving capability of a leaving group (F-) with electron density donating groups (EDP) in close proximity (neighboring group effect)?
I have a situation in which I want to hydrolyze a phosphonic acid halide under basic conditions. In my specific case, the halide is a fluorine substituent. Other halides like chlorine and bromine are ...
