Problem # 754

Show how each amine can be prepared from a carbonyl and an amine via reductive amination.

Problem # 713

When a carbonyl is treated with semicarbazide under acidic conditions an "imine" is produced called a semicarbazone.

Which of the two products below is the correct structure for a semicarbazone? Explain.

Problem # 712

Show what combination of amine and carbonyl would result in each imine or enamine.

Problem # 707

The overall mechanism for imine formation is shown below. (This isn't a real mechanism, just an outline)


Use curved arrows to draw the full mechanism for imine formation under acidic conditions. (I've added outlines of the intermediate structures for you to use as a guide). This mechanism is similar to that in problem 706 (carbonyl hydrate equilibria).