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The total number of distinct monochlorination products, counting enantiomers as separate compounds, obtained when 2-methylbutane reacts with Cl2…

Numerical answer

The total number of distinct monochlorination products, counting enantiomers as separate compounds, obtained when

2

-methylbutane reacts with

\mathrm{Cl_2}

under light is

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Answer: 6

2

-Methylbutane has four types of hydrogen. Replacing them gives:

1

-chloro-2-methylbutane (new stereocentre at C2, so

2

enantiomers),

2

-chloro-2-methylbutane (

1

2

-chloro-3-methylbutane (stereocentre at C2,

2

enantiomers) and

1

-chloro-3-methylbutane (

1

; the two terminal

\mathrm{CH_3}

on C3 are equivalent). Total

=2+1+2+1=6

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