Question

Why lindar catalyst is used in hydrogenation of alkyne?

Answer 1

Answer:

The catalyst is used for the hydrogenation of alkynes to alkenes (i.e. without further reduction into alkanes). The lead serves to deactivate the palladium sites, further deactivation of the catalyst with quinoline or 3,6-dithia-1,8-octanediol enhances its selectivity, preventing formation of alkanes.

Explanation:

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