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H2         H2 H C
H C C CH    X2     H C C CH X +  3
            h
  33               32               CH X

                                 H3C

            X= Cl  45%           55%
            X= Br  2%            98%

57

                    References

 • Organic Chemistry by T. W. Graham
 Solomons, C. B. Fryhle.
 • Organic Chemistry by Morrison & Boyd.
 • Organic Chemistry vol 1&2 by I.L. Finar.

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