Question

what is rosenmund reation

Answer 1

The Rosenmund reduction is a hydrogenation process in which an acyl chloride is selectively reduced to an aldehyde. The reaction was named after Karl Wilhelm Rosenmund, who first reported it in 1918. 
Rosenmundcatalyst can be prepared by reductionof palladium(II) chloride solution in the presence of BaSO4.

Answer 2

The rosenmud reaction is a hydrogenation process in which an acyl clrorid is selectively reduced to an aldehyde.