12th Class Chemistry Haloalkanes and Haloarenes / हैलोएल्केन तथा हैलोएरीन्स Question Bank 12th CBSE Chemistry Haloalkanes and Haloarenes

  • question_answer
    Give the major products when 2-Bromo 3-methylbutane is reacted with sodium ethoxide.

    Answer:

                    Two products are formed in this reaction \[\underset{\text{2-Bromo-3-methylbutane}}{\mathop{C{{H}_{3}}-\underset{\begin{smallmatrix}  | \\  Br \end{smallmatrix}}{\mathop{C}}\,H-\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{3}}}}\,\xrightarrow{{{C}_{2}}{{H}_{5}}^{-}O\overset{+}{\mathop{N}}\,a}\] Mechanism: Please note that the tetiary carbocation formed as a result of 1, 2-hydride ion shift is more stable than the secondary carbocation.


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