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Question

The given compound can be synthesized by a SN2 reaction. Select both the haloalkane and nucleophile that will give the product.

CH2=CHCH2OCH2CH=CH2

A
CH3CH=CHCl
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B
CH2=CHCH2Cl
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C
CH2=CHCH2ONa
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D
CH3CH=CHONa
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Solution

The correct options are
B CH2=CHCH2Cl
D CH2=CHCH2ONa
CH2=CHCH2OCH2CH=CH2 can be synthesized by the combination of halo alkane H2C=CHCH2Cl and nucleophile H2C=CHCH2ONa.
H2C=CHCH2Cl+H2C=CHCH2ONaCH2=CHCH2OCH2CH=CH2+NaCl
In this reaction, the chloride ion of H2C=CHCH2Cl is displaced with H2C=CHCH2O group.

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