Question

Write down the names of the functional group which cannot reduced by the catalytic hydrogenation?

Answer 1

Answer:

Raney Nickel under an atmosphere of hydrogen is used to reduce alkenes and alkynes, nitriles and nitro groups.

It is also used to break carbon-sulfur bonds, which is useful as part of a process that first forms a thioketal from a ketone, then reduces the carbon-sulfur bonds to form an alkane.

Explanation:

A word of caution: Raney Nickel is extremely flammable upon contact with air. It is usually stored under water. During workup of any reduction, care must be taken to prevent the nickel from becoming dry or exposed to air.