金属卟啉催化条件下有机化合物与CO_2的电羧化反应（Ⅴ）──CoTPP和VB_（12）催化下卤代丁烷和CO_2的电羧化反应

Electrocarboxylation of Organic Compounds with Carbon Dioxide Catalyzed by Metalloporphyrins(Ⅴ)──Electrocarboxylation of Halobutane with CO_2 Catalyzed by CoTPP and VB_(12)

研究了碘化四－（４－三甲胺基苯基）卟啉钴和ＶＢ_（１２）催化ＣＯ_２与卤代丁烷的电合成。该反应在－１．５Ｖ（ｖｓ．ＳＣＥ）即可发生，ＶＢ_（１２）催化产物为预期的戊酸丁酯，而ＣｏＴＰＰ催化产物为ＣＯ_２直接还原的草酸二丁酯，并未发现ＣＯ_２与卤代丁烷的反应产物。初步探讨了产生不同产物的原因．

The catalyzation of cobalt etrakis(4-trimethylaniline) porphyrin and vitamine B_(12)for electrocarboxylation of halobutane with CO_2 are studied.The electrocarboxylation in the presence of catalysts can occur at a more positive potential(-1.6V vs.SCE) than that without catalysts,The products of electrolysis are butyl oxalate(calalyzed by CoTTMAP) and butyl valerate(catalyzed by VB_(12)).The reason of producing different results of electrocarboxylation was researched by means of spectroelectrochemistry.