With petroleum as the major source of our chemical feedstock, there have been calls for alternative sources due to diminishing levels of this non-renewable resource. Carbon dioxide has been the potential to be an excellent C1 feedstock due to its cost and availability. With our interest in developing multi-component reactions, we wish to report to a simple and efficient synthesis of oxazolidinones through a copper-catalyzed coupling of aldehydes, amines, terminal alkynes under atmospheric pressure of carbon dioxide.