When 1-iodo-1-methylcyclohexane is treated with
NaOCH2CH3, the more highly substituted alkene
product predominates. When KOC(CH3)3 is used
instead, the less highly substituted alkene product predominates.
Please explain.
A) Methylenecyclohexane is more stable than
1-methylcyclohexene
B) The bulky iodo group is attacked mor readily by less bulky
NaOCH2CH3
C) KOC(CH3)3 attacks the primary hydrogen,
but NaOCH2CH3 attacks the secondary
hydrogen
D) 1-iodo-1-methylcyclohexane exists only in the chair
conformation
E) None of the above
When 1-iodo-1-methylcyclohexane is treated with NaOCH2CH3, the more highly substituted alkene product predominates. When KOC(CH3)3 is...
4. When 1-iodo-1-methylcyclohexane is treated with sodium ethoxide, the more highly substituted alkene product predominates. Alternatively, when potassium tert-butoxide is used as a base, the less substitute alkene predominates. Give the structures of the two bases, and the two products and explain the difference in regioselectivity. 5. Draw the diastereomer of the compound shown below. Explain which chair conformation one will react faster in the presence of a strong base to give a substituted cyclohexene. (Draw the chair structure of...