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Discussion in 'Pre-Dental' started by dentalmagnet, Dec 8, 2008.
A would be the optimal answer since the only other possible answer is the primary halide but you know that will never go under SN1 since primary carbocations will almost never be formed.
I read that SN1 occurs on halides attached to double bonds. Like aromatic halides because the intermediate is SP2. But then I remembered that there is no way that SN2 would occur and that SN1 was rare in that situation. So the allylic halide does do SN1 and SN2?
Also, a secondary carbon does both as well right?
You got it right.
B) vinyl halide are unreactive for SN1 and SN2
C) Great for SN2 but bad for SN1
D) Great for SN1 bad for SN2 (too bulky)
choice A is resonance stabilized and thus the best answer