Choose the correct one for each question. 1.Show how you would prepare cyclopent
ID: 899469 • Letter: C
Question
Choose the correct one for each question.
1.Show how you would prepare cyclopentene from trans-1,2-dibromocyclopentane.
D.NaOH,
2.Show how you would prepare cyclopentene from cyclopentanol.
D.NaOH,
3.Show how you would prepare cyclopentene from cyclopentyl bromide.
C.NaI, acetone
4.Show how you would prepare cyclopentene from cyclopentane (not by dehydrogenation).
A. H2O,H2SO4 B. KOC(CH3)3 C. NaI, acetoneD.NaOH,
2.Show how you would prepare cyclopentene from cyclopentanol.
A. H2SO4, B. C2H5OH C. NaOCH3D.NaOH,
3.Show how you would prepare cyclopentene from cyclopentyl bromide.
A. H2SO4 B. KOC(CH3)3C.NaI, acetone
4.Show how you would prepare cyclopentene from cyclopentane (not by dehydrogenation).
A.1. HBr, 2. KOH B. 1. Br2, h, 2. KOC(CH3)3 C. 1. NBS h, 2. KOC(CH3)3 D. 1. CH3Br, 2. KOHExplanation / Answer
1)
c Nai Acetone
de halogination reaction
2)
A H2SO4 heat
dehydration reaction
3)
B KOC(CH3)3
E2 elimination
4)
B B. 1. Br2, h, 2. KOC(CH3)3
free radical reaction followed by E2 elimination