Build a Steroid
Intermediate Compound #1
Multiple steps have been combined to give us our first intermediate
compound (16-Dehydropregnenolone acetate, shown here). Note how the
red groups have changed. The next steps include oxidation reactions,
which add oxygen to the compound. In this case, the chemist uses
chromium trioxide (CrO3) and then heats the mixture,
which breaks bonds and allows the oxygen to recombine with the
steroid.