A bio-inspired approach for efficient conversion of cellulose to formic acid （FA） was developed in an aqueous alkaline medium. Metalloporphyrins mimicking cytochrome P450 exhibit efficiently and selectively catalyti...A bio-inspired approach for efficient conversion of cellulose to formic acid （FA） was developed in an aqueous alkaline medium. Metalloporphyrins mimicking cytochrome P450 exhibit efficiently and selectively catalytic per- formance in catalytic conversion of cellulose. High yield of FA about 63.7% was obtained by using sulfonated iron（IlI） porphyrin as the catalyst and O2 as the oxidant. Iron（III）-peroxo species, TSPPFemOO , was involved to cleave the C--C bonds of gluconic acid to FA in this catalytic system. This approach used relatively high concen- tration of cellulose and ppm concentration of catalyst. This work may provide a bio-inspired route to efficient con- version of cellulose to FA.展开更多
基金This work was financially supported by the National Natural Science Foundation of China （Nos. 21372068, 21572049）, the Science and Technology Program of Hunan Province, China （No. 2014GK3115） and the Science and Technology Program of Changsha, China （No. K1508004-11）.
文摘A bio-inspired approach for efficient conversion of cellulose to formic acid （FA） was developed in an aqueous alkaline medium. Metalloporphyrins mimicking cytochrome P450 exhibit efficiently and selectively catalytic per- formance in catalytic conversion of cellulose. High yield of FA about 63.7% was obtained by using sulfonated iron（IlI） porphyrin as the catalyst and O2 as the oxidant. Iron（III）-peroxo species, TSPPFemOO , was involved to cleave the C--C bonds of gluconic acid to FA in this catalytic system. This approach used relatively high concen- tration of cellulose and ppm concentration of catalyst. This work may provide a bio-inspired route to efficient con- version of cellulose to FA.
