1.

Ph-CH_2-C-=CHunderset(Y)overset(X)hArrPh-C-=C-CH_3. The reagents X and Y respectively are

Answer»

Lindlar CATALYST , `NaNH_2`
`NaNH_2` and ALC . KOH
PT catalyst , Wilkison's catalyst
Alc. KOH and `NaNH_2`

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