hydrogenation

Has anybody ever had any luck with this process? I’m confused about the part where it says to add two drops of concentrated sulfuric acid to the ephedrine/acetic acid mixture but it also says to make sure no water is in the reaction mixture. Doesn’t concentrated sulfuric acid contain water? Also...

Introduction Gaseous hydrogen used in laboratory practice as a reducing agent. Some reduction reaction in drug manufacturing using Hydrogenation procedure such as reduction of P2NP to Amphetamine, Dezocine (Dalgan), Levorphanol and Racemorphan syntheses. Hydrogen gas can substitute hard-to-reach...