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Question

Which of the following sequence of reactions (reagents) can be used for the conversion of PhCH2CH3 into PhCH=CH2?

A
SOCl2; H2O
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B
SO2Cl2; alc.KOH
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C
Cl2/hv; H2O
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D
SOCl2; alc.KOH
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Solution

The correct option is B SO2Cl2; alc.KOH
Ethyl benzene can be converted to styrene by using sulphuryl chloride followed by alc. KOH. Sulphuryl chloride is used for the allylic substitution and alc. KOH is used for dehydrochlorination.
516751_253914_ans_f035caf616d542a8a6f49d8a50f124d4.png

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