What reaction mechanism is most likely for substitution on the following compoun

Question

What reaction mechanism is most likely for substitution on the following compound? S_N1 S_N2 Either Neither What reaction mechanism is most likely for substitution on the following compound? S_N1 S_N2 Either Neither What reaction mechanism is most likely for substitution on the following compound? S_N1 S_N2 Either Neither What reaction mechanism is most likely for substitution on the following compound? S_N1 S_N2 Either Neither What type of solvent would be best for obtaining an optically active product in the following reaction? polar protic polar aprotic apolar protic water

Explanation / Answer

Generally primary alkyl halide follows SN2 mechanism, tertiary alkyl halide follows SN1 mechanism and secondary alkyl halide follows either of the mechanisms. Allyl halide also follows SN1 mechanism as it produces stable allylic carbocation.

14) Primary alkyl halide so it follows SN2 mechanism

15) It has allylic group so it follows SN1 mechanism

16) It is tertiary alkyl halide so it follows SN1 mechanism

17) It is secondary alkyl halide so it follows either of the mechanisms.

18) In SN2 mechanism only we get inersion of configuration, then only one product will be obtained. That is optically active compound.

polar aprotic solvent favors the SN2 mechanism.

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