NEET2019ChemistryAlcohols Phenols and EthersActual
For the following reactions : which of the following is correct?
Options
- AA and B both are ( CH ₃ )₃ C - OCH ₂- CH ₃ .
- BA and B both are ( CH ₃ )₂ C = CH ₂ .
- CA is ( CH ₃ )₃ C - OCH ₂ CH ₃ and B is ( CH ₃ )₂ C = CH ₂ .
- DA is ( CH ₃ )₂ C = CH ₂ and B is ( CH ₃ )₃ C - OCH ₂ CH ₃ .
Correct answer
C. A is ( CH ₃ )₃ C - OCH ₂ CH ₃ and B is ( CH ₃ )₂ C = CH ₂ .
Step-by-step solution
With strong bases like CH ₃ CH ₂ O ⁻ , tert-butyl bromide undergoes elimination to form ( CH ₃ )₂ C = CH ₂ but with weak nucleophiles such as CH ₃ CH ₂ OH substitution occurs to afford tert-butyl ethyl ether i.e., ( CH ₃ )₃ C - O - CH ₂ CH ₃ .