Wondraczek, Holger published the artcileWater soluble photoactive cellulose derivatives: synthesis and characterization of mixed 2-[(4-methyl-2-oxo-2H-chromen-7-yl)oxy]acetic acid-(3-carboxypropyl)trimethylammonium chloride esters of cellulose, COA of Formula: C7H16ClNO2, the publication is Cellulose (Dordrecht, Netherlands) (2012), 19(4), 1327-1335, database is CAplus.
Photoactive derivatives of cellulose were prepared by a mild esterification of the biopolymer with 2-[(4-methyl-2-oxo-2H-chromen-7-yl)oxy]acetic acid via the activation of the carboxylic acid with N,N’-carbonyldiimidazole. Subsequently, modification with the cationic carboxylic acid (3-carboxypropyl)trimethylammonium chloride was carried out. Thus, water soluble polyelectrolytes decorated with high amounts of photochem. active chromene moieties were obtained. The structures of the novel polysaccharide esters and the polyelectrolytes were evaluated by means of NMR and IR spectroscopy. Moreover, the light triggered photodimerization of the chromene moieties of the photoactive polyelectrolytes was studied by means of UV-Vis spectroscopy in the dissolved state. The photochem. observed may be used to control the properties of the new polysaccharide derivatives and are thus of interest in the design of smart materials.
Cellulose (Dordrecht, Netherlands) published new progress about 6249-56-5. 6249-56-5 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst,Inhibitor,Natural product, name is 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride, and the molecular formula is C7H8BClO2, COA of Formula: C7H16ClNO2.
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https://en.wikipedia.org/wiki/Chloride,
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