Chlorination of cellulose with methanesulphonyl chloride in N,N dimethylformamide and chloral
作者:Tadashi Ishii、Atsushi Ishizu、Junzo Nakano
DOI:10.1016/s0008-6215(00)83302-9
日期:1977.11
methanesulphonyl chloride at 75° effective rapid and selective chlorination, initially at the primary positions. When most of the primary hydroxyl groups had been replaced, reaction occurred at HO-3 to give 3,6-dichloro-3,6-dideoxy- D -allose residues. 4,6-Dichloro-4,6-dideoxy- D -galactose residues, derived from non-reducing end-groups were detected only in highly chlorinatedcellulose. The degradation