119554-98-2Relevant academic research and scientific papers
Analysis of the positions of substitution of acetate and butyrate groups in cellulose acetate-butyrate by the reductive-cleavage method
Yu, Nanxiong,Gray, Gary R.
, p. 225 - 231 (1998)
The degree of substitution (ds) and the distribution pattern of the two ester substituents in commercial samples of cellulose acetate-butyrate (CAB) were determined by sequential neutral methylation, direct reductive cleavage and in situ acetylation. When
SYNTHESIS AND MASS SPECTRA OF 4-O-ACETYL-1,5-ANHYDRO-2,3,6-TRI-O-ETHYL-D-GLUCITOL AND THE POSITIONAL ISOMER OF 4-O-ACETYL-1,5-ANHYDRO-DI-O-ETHYL-O-METHYL-D-GLUCITOL AND 4-O-ACETYL-1,5-ANHYDRO-O-ETHYL-DI-O-METHYL-D-GLUCITOL
Zeller, Samuel G.,D'Ambra, Anello J.,Rice, Michael J.,Gray, Gary R.
, p. 53 - 62 (2007/10/02)
Reductive cleavage of fully methylated, partially O-ethylated cellulose or fully ethylated, partially O-methylated cellulose and subsequent acetylation had previously been shown to produce 4-O-acetyl-1,5-anhydro-2,3,6-tri-O-methyl-, -6-Oethyl-2,3-di-O-methyl-, -3-O-ethyl-2,6-di-O-methyl-, -2-O-ethyl-3,6-di-O-methyl-, -2,3,di-O-ethyl-6-O-methyl-, -2,6-di-O-ethyl-3-O-methyl-, -3,6-di-O-ethyl-2-O-methyl-, and -2,3,6-tri-O-ethyl-D-glucitol.Described herein is the independent synthesis of these derivatives, except for the first (which had been reported); and their (1)H-n.m.r. spectra, chemical-ionization (NH3) mass spectra, and electron-impact mass spectra are tabulated.
