Which of the following catalysts is used to c | vedclass

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(B) The partial hydrogenation of an alkyne to a $cis$-alkene is achieved using Lindlar's catalyst,which consists of $Pd$ supported on $CaCO_3$ or $BaS

Vedclass · Accepted Answer

$Pd-C / 	ext{quinoline}$

Vedclass · Answer

(B) The partial hydrogenation of an alkyne to a $cis$-alkene is achieved using Lindlar's catalyst,which consists of $Pd$ supported on $CaCO_3$ or $BaSO_4$ and poisoned with quinoline or lead acetate. This catalyst prevents the further reduction of the alkene to an alkane. Therefore,the correct catalyst is $Pd-C / 	ext{quinoline}$ (often referred to as Lindlar's catalyst).

Which of the following catalysts is used to convert an alkyne $(-C \equiv C-)$ to form a $cis$-alkene?

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