Question: please help!!!!! Select the critical factor that causes these two reactions to follow different pathways from the choices below. Sulfuric acid pushes alkyl groups to

please help!!!!! please help!!!!! Select the critical factor that causes these two reactions

Select the critical factor that causes these two reactions to follow different pathways from the choices below. Sulfuric acid "pushes" alkyl groups to shift to neighboring carbons. Under acidic conditions (H2SO4), dehydration follows an El pathway. Carbocations form and rearrangements occur. The POCl/ pyridine reagent is basic and promotes rapid E2 elimination; carbocations are not formed. The mechanism involves the same intermediate carbocation in both cases, but the presence of basic pyridine promates rapid proton removal and thereby suppresses rearrangement. POCl3 converts the hydroxyl group to a superior leaving group, thereby promoting the E1 pathway. pyridinePOCl3 H2SO4

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