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Haloalkanes and Haloarenes
Question
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Arrange each set of compounds in order of increasing boiling points:








Answer

Both of the alkyl halides are primary. However, the substituent CH3 is at a greater distance to the carbon atom linked to Br in 1- bromo-3-methylbutane than in 1-bromo-2-methylbutane. Therefore, the approaching nucleophile is less hindered in case of the 1-bromo-3-methylbutane than in case of the 1-bromo-2-methylbutane. Hence, 1-bromo-3-methylbutane reacts faster than the latter by SN2 mechanism.

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Some More Questions From Haloalkanes and Haloarenes Chapter

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Write structures of the following compounds:
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i) A single monochloride.

Among the isomeric alkanes of molecular formula C5H12, identify the one that on photochemical chlorination yields:

i)Three isomeric monochlorides.

Among the isomeric alkanes of molecular formula C5H12, identify the one that on photochemical chlorination yields:
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Draw the structures of major monohalo products in each of the following reactions: