title: Synthesis and Low Temperature Spectroscopic Observation of 1,3,5-Trioxane-2,4,6-Trione: The Cyclic Trimer of Carbon Dioxide.
abstract: 1,3,5-Trioxane-2,4,6-trione (cyclic trimer of CO2) is the product of a four-step synthesis: chlorination of isobutyraldehyde; cyclotrimerization of 2-chloro-2-methylpropanal; dehydochlorination of 2,4,6-tris(2-chloropropan)-2-yl-1,3,5-trioxane; ozonolysis at -80 °C of 2,4,6-tri(propan-2-ylidene)-1,3,5-trioxane. This trioxane-trione is detected in solution at temperatures between -80 to -40 °C, and its conversion to CO2 is monitored by (13)C NMR and FTIR. The CO2 trimer has a half-life of approximately 40 min at -40 °C.
authors.affiliation: Chemistry Division, Naval Research Laboratory , Washington, D. C. 20375, United States.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Rodig
authors.affiliation: Chemistry Division, Naval Research Laboratory , Washington, D. C. 20375, United States.
authors.forename: Arthur W
authors.initials: AW
authors.lastname: Snow
authors.affiliation: Mettler-Toledo AutoChem, Inc. , Columbia, Maryland 21046, United States.
authors.forename: Paul
authors.initials: P
authors.lastname: Scholl
authors.affiliation: Mettler-Toledo AutoChem, Inc. , Columbia, Maryland 21046, United States.
authors.forename: Simon
authors.initials: S
authors.lastname: Rea