8) (2) Which one of the following compounds is expected to react slower by way o

Question

8) (2) Which one of the following compounds is expected to react slower by way of an S2 mechanistic pathway? a. Bromomethane b. Bromoethane c. 2-bromopropane d. 2-bromo-2-methylpropane 9) (2) Which one of the following compounds is expected to react faster by way of an Syl mechanistic pathway? a. Bromomethane b. Bromoethane c. 2-bromopropane d. 2-bromo-2-methylpropane 10) (5) Which of the following reactions do you think will occur faster by way of an Sy2 mechanistic pathway? Explain your answer below CH3 H3C CH3 a. CH3 CH3 b. CH3 H3C CH3

Explanation / Answer

Ans 8 : 2-Bromo-2-methylpropane

SN2 is a bimolecular nucleophilic substituition reaction , that occurs in a single step. Nucleophile attacks the carbon bearing the leaving group , so the presence of bulkier substituent groups on it will have dramatic inhibiting effects.

So tertiary halides are least reactive , and primary ones being the most reactive of all.

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