Oxazolidin-2-one ring, a popular framework in synthetic organic chemistry: Part 1. The construction of the oxazolidin-2-one ring

The 1,3-oxazolidin-2-one nucleus is a popular heterocycle framework in synthetic organic chemistry, as well as in medicinal chemistry. This paper deals with the huge number of synthetic approaches addressed to the construction of this five-member ring, with a particular care for the mechanistic and stercochemical outcome.