Electron impact studies. XCVII. Acetic anhydride[α,α'-D₂]. Synthesis and negative ion molecule reactions. An ion cyclotron resonance study

Abstract

Acetic anhydride[α,α?-D₂] has been synthesized in near-quantitative yield by the reaction between acetic acid[α-D] and dicyclohexylcarbodiimide. The gas-phase reaction between the acetate anion and acetic anhydride[α,α-D₂] yields a 1 : 1 adduct which decomposes by loss of CH₂CO and CHDCO so that k_H/k_D is 1.2 when the ion- transit time is 10^-3-10^-4 s, and 2.0 at 10^-1-10^-2 s.