Which of the following compounds spontaneously hydrolyze to give alcohol?
1. CH3-C=CH2
2. CH2=CH2
3. (CH3)3C-CH=CH2
4. Benzene ring-CH2-CH=CH2
Answer (2)
None of the compounds listed spontaneously hydrolyze to give alcohols under normal conditions. They require specific conditions, such as acid catalysis, to undergo hydrolysis. Therefore, the answer is that none of the compounds hydrolyze spontaneously.
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To determine which of the given compounds spontaneously hydrolyze to give alcohol, we need to consider their structures and the common conditions under which such reactions occur.
Hydrolysis is a chemical reaction where a compound reacts with water to form new products. In the context of organic chemistry, some compounds can hydrolyze to form alcohols, often in the presence of acid or base catalysts. Ethers, esters, halides, and compounds with certain reactive double bonds (like epoxides) can hydrolyze to form alcohols under specific conditions.
CH₃-C=CH₂ : This is a terminal alkene. Alkenes generally do not hydrolyze spontaneously to give alcohols under normal conditions without the presence of a catalyst such as an acid in an addition reaction like hydration. If you add water in the presence of an acid, this compound can be converted to alcohol via hydration, but this is not a "spontaneous hydrolysis."
CH₂=CH₂ (Ethylene): Similar to the first compound, ethylene is a simple alkene. Alkenes do not undergo spontaneous hydrolysis to yield alcohols without a catalyst. Ethylene can be converted into ethanol via acid-catalyzed hydration, but again, this is not spontaneous hydrolysis.
(CH₃)₃C-CH=CH₂ (Trimethylvinylmethane): This is an alkene with a bulky substituent. Like the other alkenes, it would require a catalyst for hydrolysis (again, via hydration) to yield an alcohol. However, without a catalyst, spontaneous hydrolysis does not occur.
Benzene ring-CH₂-CH=CH₂ (Styrene-like compound): This compound has an allylic structure. Allyl positions are somewhat reactive due to the possibility of forming stable cations. However, spontaneous hydrolysis to give an alcohol would again typically require a catalyst or specific conditions, such as acid-catalyzed hydration.
In conclusion, none of these compounds spontaneously hydrolyze to alcohol under normal conditions without a catalyst. Alkenes can be transformed into alcohols via catalytic processes like acid-catalyzed hydration, but this is not the same as spontaneous hydrolysis. Therefore, none of the given options undergoes spontaneous hydrolysis to give alcohol without additional conditions or catalysts.
