Concept explainers
(a)
Interpretation:
1-Heptanol is synthesised using given synthetic scheme has to be shown.
Concept introduction:
The Lindlar catalyst is a deactivated hydrogenation catalyst that stops alkyne hydrogenation at the alkene stage, allowing conversion of
Hydroboration–protonolysis is an alternative way to prepare a cis-alkene from an alkyne.
(b)
Interpretation:
2-Heptanol is synthesised using given synthetic scheme has to be shown.
Concept introduction:
The Lindlar catalyst is a deactivated hydrogenation catalyst that stops alkyne hydrogenation at the alkene stage, allowing conversion of alkynes to cis-alkenes. Hydroboration followed by an acid workup (instead of basic peroxide) also gives cis-alkenes from alkynes. Hydroboration–protonolysis is an alternative way to prepare a cis-alkene from an alkyne.
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Chapter 7 Solutions
Organic Chemistry
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- The hydrocarbon fluorene was treated with potassium t-butoxide in an acid-base reaction, giving the fluorenide anion and t-butyl alcohol. (a) Which way does the equilibrium lie, and by how much? b) What is the proportion of the fluorenide anion to fluorene? (c) Why is fluorene so highly acidic, considering the pKa of an average alkane is above 50?arrow_forwardAnswer ALL parts of this question. (a) Using resonance structures, discuss the following statement; phenols are much stronger acids than aliphatic alcohols. (b) Give the structure of a stronger organic acid than phenol. (c) Rationalise the acidity of the latter organic acid by drawing two resonance structures of the conjugate base. (d) Eugenol is a natural product derived from the dried flower buds of the evergreen tree, Eugenia aromatica. Briefly describe a procedure with reagents required to extract eugenol as a single component from the mixture of compounds present in these flower buds. OH LOCH 3 eugenolarrow_forward3. (a) Draw the structure of 1-ethylcyclohexene (B). (b) Draw the structures of the two possible products that can result from treating B with hydrogen bromide and very briefly explain which one will be favoured). (c) Draw the curly arrow mechanism for the formation of the favoured productarrow_forward
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