The following compound undergoes Diels-Alder reaction with dienophile (e.g., maleic anhydride)
HC≡C−C≡CH. Is it True or False.
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Solution
Necessary conditions for diels-Alder reaction are S-cis conformation and non-linearity of dienes. 1,3-Butadiyne is linear and cannot assume S-cis conformation.