NEET2017ChemistryGeneral Organic ChemistryActual
(R) -2-Iodobutane is treated with NaI in acetone and allowed to stand for a long time. The product eventually formed is
Options
- A(R)-2-iodobutane
- B(S) -2-iodobutane
- C( )-2 -iodobutane
- D( )-1,2 -diiodobutane.
Correct answer
C. ( )-2 -iodobutane
Step-by-step solution
I ⁻ is a good nucleophile as well as a good leaving group. Therefore, if (R) -2-iodobutane is treated with NaI , repeated S _ N 2 reactions occur. As a result, eventually a racemic mixture of ( ) -2-iodobutane is obtained.