Rowland, Stanley P. published the artcileReagent effects on distribution of methylsulfonylethyl substituents in the D-glucopyranosyl unit of cotton cellulose, Recommanded Product: 2-Bromoethyl Methyl Sulfone, the publication is Canadian Journal of Chemistry (1968), 46(3), 451-7, database is CAplus.
The distribution of methylsulfonylethyl substituents at the 2-O-, 3-O-, and 6-O-positions of the monosubstituted D-glucopyranosyl unit of cotton cellulose is a function of the specific reagent and the reaction conditions. The distribution is dependent upon the extent to which rate or equilibrium of reaction at the individual hydroxyl groups is the controlling factor. Under conditions which approach equilibrium in the reaction of methyl vinyl sulfone with cotton cellulose, the ratio of 2-O- to 6-O-substitution is 0.14:1.0. A variety of precursors for methyl vinyl sulfone [2-(methylsulfonyl)ethanol, [2-(methyl-sulfonyl)ethyl]pyridinium chloride, 2-bromoethyl methyl sulfone, and bis-[2-(methylsulfonyl) ethyl] ether] react with cotton cellulose under nonequilibrium conditions to generate ratios of 2-O- to 6-O-substitutions as high as 0.44:1.0. The effect of diffusion of reagents into the cotton fiber upon the distribution of substituents is clearly evident in these reactions. Specific modifications of the process of reaction of methyl vinyl sulfone or 2-(methylsulfonyl)ethanol with cotton cellulose yield ratios of substituents in the 2-O- to 6-O-positions as high as 0.8:1.0; this ratio is similar to those which characterize certain rate-controlled Williamson etherification reactions with cotton cellulose. 21 references.
Canadian Journal of Chemistry published new progress about 16523-02-7. 16523-02-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Sulfone,Aliphatic hydrocarbon chain, name is 2-Bromoethyl Methyl Sulfone, and the molecular formula is C3H7BrO2S, Recommanded Product: 2-Bromoethyl Methyl Sulfone.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary