## Cyclomaltoheptaose @-cyclodextrin, @CD) is attracting attention with its remarkable properties of molecular encapsulation (for examples see ref 1). Its solubility in water, however, is somewhat limited: only 18 g (0.0158 mol) per liter. Derivatization, e.g., ether formation, leads to substantia
13C NMR study of the distribution of the substituents in carboxymethyl ethers of polysaccharides
β Scribed by T.I. Usmanov; U.G. Karimova; A. Sarymsakov
- Book ID
- 116049637
- Publisher
- Elsevier Science
- Year
- 1990
- Weight
- 528 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0032-3950
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## Abstract ^13^C NMR chemical shifts of 22 __ortho__βsubstituted nitrobenzenes are reported. Except for those on Cβ3 and Cβ5, the effects of the interacting nitro group and the substituent are nonβadditive. The chemical shifts of the __ipso__, __ortho__ and __para__ carbons in the spectra and thos
A cellulose ester derivative having two different substituents, namely, cellulose acetate butanoate (butyrate) (CAB) has been produced commercially for a wide variety of applications, such as molding plastics, film products, lacquer coatings, and melt coatings'. As the final properties of these prod