All Questions
Tagged with reactivity halides
21
questions
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Why can't RX add to alkenes / alkynes like HX?
With an analogous mechanism: C bonded to X has a δ+ charge and attacks the pi electrons to form a carbocation intermediate, with X- as a leaving group. X- then adds to the carbocation to neutralize it....
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Why bromoacetone is more reactive towards SN2 than alkyl bromides? [duplicate]
Compare the rates towards SN2 reaction:
I got the point that 2-bromobutane d is a secondary halide, so the steric hinderance is highest making it least reactive among the four. Both b and c are ...
2
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1
answer
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Why is it technically inaccurate to say that the decrease in reactivity of halogens is due to decreasing electronegativity?
I came across the following information in this post.
Below the infographic there is a paragraph with a disclaimer:
As another disclaimer, the reactivity of the halogens decreasing down the group ...
- 305
1
vote
1
answer
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Lucas test in the presence of EWG like -CN
Does the given compound give Lucas test?
My teacher says due to the presence of a strong electron withdrawing group the carbocation formed is unstable.
But I say if it undergoes $\mathrm{S_N2}$ ...
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Will Chlorodifluoromethane (R22 refrigerant) react with calcium metal?
I am attempting to recycle or find a use for chlorodifluoromethane, however I do not want to risk venting it into the atmosphere or exposing myself to hydrofluoric acid. Ideally, I would like to ...
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1
answer
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Equation for reaction between chlorine fluoride and potassium bromide
The equation given in the answer key was
$$\ce{ClF + 2KBr → KCl + KF + Br2}$$
However won't the $\ce{KCl}$ also react with $\ce{ClF}$ to form $\ce{KF}$ and $\ce{Cl2}$, resulting in the net reaction ...
- 313
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2
answers
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Reactivity of primary and tertiary alkyl halides
From USNCO 2004, Q58:
The reaction between which pair of reactants occurs the fastest for $[\ce{OH-}] = \pu{0.010 M}$?
(A) $\ce{CH3CH2CH2CH2Cl + OH-}$
(B) $\ce{(CH3)3CCl + OH-}$
(C) $...
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8
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1
answer
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Does chlorine trifluoride react with candlewax?
I've run across references to chlorine trifluoride quite a lot. It pops up fairly regularly on the Worldbuilding SE, and whatever idea people have with it is usually shot down very quickly - For ...
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Why is the silver nitrate chemical test more favorable than that of sodium iodide?
Two tests to determine the presence of alkyl chlorides are the silver nitrate in 1% ethanol and sodium iodide in 15% acetone tests. These two tests both produce a precipitate when added to chloride ...
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Is benzyl chloride or allyl chloride more reactive?
What compound is more reactive, benzyl chloride [(chloromethyl)benzene] or allyl chloride (3-chloroprop-1-ene)? I know that both have a higher reactivity than alkyl and aryl chlorides.
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1
answer
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Displacement reactions of Halide ions
I understand that the reactivity decreases as you go down group 7. In displacement reactions the more reactive halide replaces the least reactive halide, but in this question i do not understand the ...
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1
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Why doesn't fluoride ion have highest nucleophilic power (nucleophilicity)?
As you can see from the image above,
'$\ce{R3C}$' anion has 1 lone pair
'$\ce{R2N}$' anion has 2 lone pairs
$\ce{RO}$ anion has 3 lone pairs
$\ce{F}$ anion has 4 lone pairs
According to VSEPR theory,...
- 1,232
14
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1
answer
29k
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Dehalogenation of vicinal dihalides
Why, among different metals, only zinc is favourable for the dehalogenation of vicinal dihalides?
user33495
4
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2
answers
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Why is allyl chloride more reactive towards substitution than alkyl chloride?
I can understand that the reactivity of alkyl halide is more than vinyl and aryl halides because the halogen atom in alkyl halide is connected to the sp3 carbon.
Whereas in vinyl or aryl the halogen ...
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3
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Are there stronger oxidizing agents than fluorine gas?
Are there stronger oxidizing agents than fluorine gas, so it could oxidize fluoride to fluorine?
Also, in case of oxygen, fluorine gas can oxidize oxygen gas to the exotic dioxygenyl ion. Can ...
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2
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Why is caesium considered the most reactive element and not fluorine? [closed]
Some people say caesium is most reactive element. I thought it to be fluorine as it is the element that reacts with almost all elements (except couple of inert gases). But caesium won't react many of ...
1
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1
answer
430
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Alkyl halide reaction
In the following the reaction ,
According to me the product should be compound (A) due to substitution reaction.
But the product formed is the compound (B) , what could be the mechanism for the ...
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2
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10k
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Reactivity towards SN1 reaction
In the following compounds , we have to find order of compounds of their reactivity towards SN1 reaction.
According to me , we should compare carbo cation stability which is formed as an ...
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2
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1
answer
7k
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Predicting order of nucleophilic substitution reactivity
What order of reactivity do you predict will be observed when each alkyl halide is mixed with sodium iodide in acetone?
1-Chlorobutane
1-Bromobutane
2-Chloro-2-methylpropane
Bromobenzene
...
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2
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Grignards do transmetallation?
Grignards don't add to alkyl halides to create linear carbon extensions because Grignards do transmetallation rather than SN2 displacement of halide.
Is this correct?
I thought transmetallation a) ...
- 19k
2
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1
answer
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Why is the reactivity of primary alkyl halides with nucleophiles (SN2 mechanism) greater than secondary and tertiary alkyl halides?
For the reaction between alkyl halide and a nucleophile, following the SN2 mechanism, the reactivity of alkyl halides is in the order: primary halide > secondary halide > tertiary halide.
If you ...
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