What is Lindlars catalyst?
1 Answer
Dec 6, 2017
Pd on
-
Lindlar catalyst is used for controlled partial hydrogenation of
alkene. It is used to prepare cis alkene from an alkyne and#H_2# . -
#rArr# A less active Pd catalyst is used where Pd is adsorbed onto#CaCO_3# or#BaSO_4# { Pd is poisoned} with added lead acetate and quinoline. -
With Lindlar catalyst, 1 mole of
#H_2# , adds to an alkene and cis
alkene product is unreactive to further reduction.