Question
Asked Sep 21, 2019
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4. What alkenes might be formed by the dehydration of the following alcohols? If more than
one product is possible, write them all and then indicate which you expect to predominate.
но сн,
A)
CH,CH2CHCHCH3
сHз
ОН
-ҫнCH,CH,
OH
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4. What alkenes might be formed by the dehydration of the following alcohols? If more than one product is possible, write them all and then indicate which you expect to predominate. но сн, A) CH,CH2CHCHCH3 сHз ОН -ҫнCH,CH, OH

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Expert Answer

Step 1

The reactions mentioned are dehydration reactions. The OH group is eliminated along with H atom from adjacent C atom. The number of products formed depend upon the H atom’s position.

Step 2

Here,formation of a double bond between C2 and C3 is stable.

So the second product is major.

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a. сH сн -н,о CH н.с аHs Нас CHs Нас Он 2-methylpent-2-ene 4-methylpent-2-ene 2-methylpentan-3-ol

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Step 3
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b. он -но -сH, сн 1-methyleyclopent-1-ene 1-methylcyclopentanol

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