(a)
Interpretation:
The synthetic route for the preparation of given transformation should be determined.
Concept Introduction:
Hydrogenation reaction: The hydrogenation is a reduction reaction which results in an addition of hydrogen. Several organic compounds is hydrogenated, it becomes more saturated.
Linder’s catalyst: The
Soda amide: The
(b)
Interpretation:
The synthetic route for the preparation of given transformation should be determined.
Concept Introduction:
Soda amide: The NaNH2/NH3 is a strong base and excellent nucleophile. Its used deprotonated of weak acids and also for elimination reaction.
Anti- Markovnikov addition: These rules describe the regiochemistry where the substituent is bonded to a less substituted carbon, rather than the more substituted carbon. This placed is quite unusual as carbon cations which are commonly formed during alkene or alkyne reactions tend to favor the more substituted carbon.
(c)
Interpretation:
The synthetic route for the preparation of given transformation should be determined.
Concept Introduction:
Markovnikov addition: The addition reaction of parotic acids to a different alkene or alkyne, the hydrogen atom of
Soda amide: The NaNH2/NH3 is a strong base and excellent nucleophile. Its used deprotonated of weak acids and also for elimination reaction.
(d)
Interpretation:
The synthetic route for the preparation of given transformation should be determined.
Concept Introduction:
Soda amide: The NaNH2/NH3 is a strong base and excellent nucleophile. Its used deprotonated of weak acids and also for elimination reaction.
Metal and ammonia reaction: The alkyne involves sodium (Na)/NH3. This end up reducing to alkyne to give the trans (E) alkene.
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