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  • Acetone (CH3COCH3) is the major product in : <img alt="\mathrm{I\; CH_{2}=C=CH_{2}\xrightarrow[]{H_{3}O^{+}}}" src="/latex-image/?%5Cmathrm%7BI%5C%3B%20CH_%7B2%7D%3D

Acetone (CH3COCH3) is the major product in :

\mathrm{I\; CH_{2}=C=CH_{2}\xrightarrow[]{H_{3}O^{+}}}

\mathrm{II\; CH_{3}C=CH\xrightarrow[]{H_{2}SO_{4}/HgSO_{4}/H_{2}O}}

\mathrm{III\; CH_{3}C=CH\xrightarrow[\mathrm{H_{2}O_{2}/OH^{\ominus }}]{BH_{3}THF}}

Option: 1

 I only   


Option: 2

 II only                        


Option: 3

 III only         


Option: 4

Both I and II

 


Answers (1)

best_answer

The given reactions occur as

Note : Protonation of allenes form vinylic cation and not allylic cation (FACT)

Thus, reaction (I) and (II) form Acetone as major product.

Hence, the correct answer is Option (4).

 

 

Posted by

Ajit Kumar Dubey

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