It is a kind of that air is used to prepare C for oxidant6The method of the selective carboxylated cellulose in position

The present invention provides a kind of methods for using air as oxidant selective oxidation cellulose, method for oxidation are as follows: using TEMPO derivative and metal nitrate as co-catalyst, potassium chloride is co-catalyst, and the selective oxidation to cellulose primary hydroxyl is realized using air as main oxidant.It is compared to traditional fibre element process for selective oxidation, the method for the invention has many advantages, such as that economic and environment-friendly, equipment corrosion is small, safe operation, cellulose degradation degree are low, carboxylated is entirely without aldehyde radical.