IS A GAS-PHASE CANNIZZARO-TYPE REACTION PERSPECTIVE

摘要

Quantum chemical calculations for model processes CH2=O + CH2=O-radical anion reversible arrow CH3O- + CH=O-. and C6H5CH=O + C6H5CH=O-radical anion reversible arrow C6H5CH2O- + C6H5C=O-. indicate convincingly their endoergicity. Therefore, spontaneous gas-phase Cannizzaro-type reaction between formaldehyde and benzaldehyde and their radical anions is unlikely to occur. This suggests a significant difference between the gas phase reaction under investigation and the classical Cannizzaro reaction. [References: 14]