Tris O-carboxymethyl

On the other hand, literature data show [16] that different cellulose derivatives which form liquid crystalline solutions in organic solvents may also form cholesteric thermotropic phases in the absence of a solvent—with spontaneous molecular orientation and cholesteric reflection, such as 2-acetoxypropyl cellulose, 2-hydroxypropyl cellulose, the trifluoroacetate ester of hydroxypropyl cellulose, the propanoate ester of hydroxypropyl cellulose, the benzoate ester of hydroxypropyl cellulose, 2-ethoxypropyl cellulose, acetoacetoxypropyl cellulose, trifluoroacetoxypropyl cellulose, the phenylac-etate and 3-phenylpropionate of hydroxypropyl cellulose, phenylacetoxy, 4-methoxy-phenylacetoxy, p-tolylacetoxy cellulose, trimethylsilyl cellulose, trialkyl cellulose, cellulose trialkanoate, the trialkyl ester of (tri-o-carboxymethyl) cellulose, 6-o-a-(l-methylnaphthalene)-2,3-o-pentyl cellulose, etc. Moreover, the suspensions of cellulose crystallites spontaneously form the chiral nematic phase. The formation of mesophase suspension of cellulose crystalHtes varies from one type of cellulose to another, being influenced, in the formation of the chiral nematic phase, by the mineral acid selected... 

S. Trombotto, M. Danel, J. Fitremann, A. Bouchu, and Y. Queneau, Straighforward route for anchoring a glucosyl moiety onto nucleophilic species Reaction of amines and alcohols with carboxymethyl 3,4,6-tri-O-acetyl-a-D-glucopyranoside 2-O-lactone, J. Org. Chem., 68 (2003) 6672-6678. 

Me randomly-methylated DM 2,6-di-O-methyl TM per-2,3,6-tri-0-methyl DMA peracetylated DM- -CyD 2-HE 2-hydroxyethyl 2-HP 2-hydroxypropyl 3-HP, 3-hydroxypropyl 2,3-DHP, 2,3-dihydroxypropyl Gi, glycosyl G2, maltosyl GUG, Glucuronyl-glucosyl DE 2,6-di-O-ethyl TE per-2,3,6-tri-0-ethyl CME O-carboxymethyl-0-ethyl TA per-2,3,6-tri-O-acyl (C2 Cig) TB per-2,3,6-tri-0-butanoyl TV per-2,3,6-tri-O-valeryl TO per-2,3,6-tri-0-octyl SBE4 d.s.4 of sulfobutyl ether group SBE7 d.s.7 of sulfobutyl ether group. Oi 25969 octasodium salt of octakis-S-(2-carboxyethyl)-octathio-y-CyD. 

Alkylation of metal chelates of sucrose with allyl halides and sodium bromo-acetate in DMSO yielded mono-O-allylated and mono-O-carboxymethylated derivatives. A new acidic monosaccharide from the O-specific lipopolysaccharide of Shigella dysenteriae type 3 has been identified as 4-0-[(/ )-l-carboxy-ethyl]-D-glucopyranose on the basis of chemical and mass-spectral evidence and by its synthesis by alkylation of methyl 2,3,6-tri-0-benzyl-a(P)-D-glucopyranoside with (5)-2-chloropropionic acid, esterification (with diazomethane), hydrogenolysis, and acid hydrolysis. ... 

FIGURE 5.7 Synthesis of O-(cyanoethyl) inulin, 0-(3-amino-3-oxopropyl) inulin, O-(carboxyethyl) inulin, 0-(3-hydroxylimio-3-aminopropyl) inulin, O-(aminopropyl) inulin, steroyl amide inulin, IV-carboxymethyl(aminopropylated) inulin, l-oxo-9-tetrakia(carboxymethyl)-3,6,9-triazanoyl-3-aminopropyl inulin, and l,ll-dioxo-3,6,9-tris-(carboxymethyl)-3,6,9-triazaundecanedioyl-bis(3-aminopropyl) inulin. 

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