Carbon Dioxide → Dihexyl carbonate

온도

30 °C

Into the above-mentioned autoclave in which step (3) was performed was charged 61.5 g (602 mmol) of hexanol (manufactured and sold by Aldrich, U.S.A.; a dehydrated grade). The autoclave was sealed. Then, from a carbon dioxide gas bomb which was connected to the autoclave through a SUS tube and a valve, carbon dioxide gas having a pressure of 5 MPa was introduced into the autoclave. Stirring of the contents of the autoclave was started. 10 Minutes after the start of the stirring, the valve of the carbon dioxide gas bomb was closed. Then, the internal temperature of the autoclave was elevated to 180° C. while stirring. In this instant, the internal pressure of the autoclave was about 7.5 MPa. Then, a reaction was performed for 6 hours while maintaining the internal pressure of the autoclave at about 7.5 MPa. Thereafter, the inside of the autoclave was cooled to about 30° C. and the internal pressure of the autoclave was returned to atmospheric pressure by gently purging the carbon dioxide gas through the purge line, and there was obtained a transparent reaction mixture. In the reaction mixture, dihexyl carbonate was obtained in a yield of 14%.

1. customThe autoclave was sealed
2. additionwas introduced into the autoclave
3. customwas elevated to 180° C.
4. stirringwhile stirring
5. temperaturewhile maintaining the internal pressure of the autoclave at about 7.5 MPa
6. customby gently purging the carbon dioxide gas through the purge line
7. customthere was obtained a transparent reaction mixture

ORD 기록

ord-6933370032c940bbaf252a47c83e638f

출처 데이터셋

uspto-grants-2008_11

DOI

10.6084/m9.figshare.5104873.v1

특허 번호

US07446218B2