National Institute of Advanced Industrial Science and Technology (AIST) This page is a page of the former research institute. We stopped updating on March 31.2001.
E-mail to webmaster (Japanese) E-mail to webmaster (English)
National Institute for Resources and Environment HomePage

NIRE Annual Report
BackContentsNext
 1999

Chemical Fixation of Carbon Dioxide into Useful Organic Compounds

Chemical Process Division
Global Warming Control Department
Objectives
Carbonic acid diesters and carbamic acid esters are useful synthetic intermediates for pharmaceutical, agricultural, and other chemicals and are currently produced in industry using phosgene or carbon monoxide. If carbon dioxide which is also a kind of carbonyl compound can be used for their production in place of these rather toxic starting materials, it would be of industrial interest in view of saving the chemical carbon source besides the safety of process.
Results
In our effort to develop a new reaction using carbon dioxide as one of starting materials to produce useful organic compounds, it has been found that some carbonate and carbamate esters could be formed when the reaction of carbon dioxide, alcohols, and tert-amines were carried out in the presence of acetylene (eqn. 1). The selected results are shown in Table 1. This reaction requires no catalyst and affords both symmetric and asymmetric carbonates diesters by using different alcohols, and tert-amines in fair yields.
Table 1.Reactionwith Various and tert-Amines
Selected Publications
1) A Novel Synthesis of Dialkyl Carbonates from Carbon Dioxide, Alcohols, and tert-Amines Mediated by Acetylene, Chem. Lett., 1996, 825.
BackContentsNext










National Institute for Resources and Environment