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ChemistrySingle correct+4 / -1Question 76 of 90

JEE Main 2022 · 28 Jul · Shift 1, Chemistry question 76

Identify the correct statement for the below given transformation.

CH3−CH2−CH2−CH∣⊕N(CH3)3−CH3→C2H5OHC2H5ONaA(Major)+B(Minor)\mathrm{CH_3{-}CH_2{-}CH_2{-}\underset{\displaystyle\oplus N(CH_3)_3}{\underset{|}{CH}}{-}CH_3\xrightarrow[C_2H_5OH]{C_2H_5ONa}\underset{(Major)}{A}+\underset{(Minor)}{B}}

Choose one option
Answer and worked solution

Official answer: C

Bulky leaving group. −N(CH3)3+\mathrm{-N(CH_3)_3^+} gives Hofmann elimination: the less substituted pent-1-ene is major and pent-2-ene minor.

(C)

Topics:Elimination reactionsAmines
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