Catalytic production of urethanes from amines and alkyl halides in supercritical carbon dioxide
作者:Masaaki Yoshida、Namiko Hara、Sanae Okuyama
DOI:10.1039/a908819i
日期:——
Some common onium salts catalysed selective urethane productionfrom amines and alkyl halides in supercriticalcarbondioxide, which acted not only as an alternative to organic solvents but also as a phosgene replacement; the reaction efficiency was 50100 times higher than that attained in heptane.