(A) is subjected to reduction with Zn−Hg/HCl and the product formed is N-methylmethanamine. (A) can be:
Zn−Hg−−−−→HClproduct of the clemmensen reduction is
Propionic acid is subjected to reduction with hydroiodic acid in the presence of a little P, the product formed is
Toluene on heating with succinic anhydride in the presence of anhydrous followed by reduction with Zn - Hg/Con. HCl gives a product which on heating with thionyl chloride followed by heating with anhydrous AlCl3 in CS2 gives major product (A), so, the product (A) is: