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Imdadul Haque posted an Question
October 09, 2020 • 13:58 pm
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30 points
30 points
- IIT JAM
- Chemistry (CY)
54) optically pure isomer a and b were heated with nang in dmf, the correct statement from the following is nme2 (c "ns ni vie me nme2 (d) (8) (b) br n3 [questi
54) Optically pure isomer A and B were heated with NaNg in DMF, The correct statement from the following is NMe2 (c "Ns NI Vie Me NMe2 (d) (8) (b) Br N3 [Question lID = 9822] 1. A gives optically pure D and B gives optically pure C [Option ID=39282] 2. A gives racemic mixture of C and B gives optically pure C [Option ID 39283] . *gve opticauly pure C and B gives racemic C [Option ID = 39284] 4. A gives optically pure D and B gives racemic D [Option 1D 39285]
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Priyanshu kumar Best Answer
Explanation: A gives racemic mixture since NMe2 and Br are trans diaxial hence NGP will operate and either of the two side attack is feasible giving rise to racemic product In B , Both group are axial and equatorial respectively so NGP will not operate and hence reaction follows SN2 pathway
option B is correct