Detail of "13100-46-4"

Reference

Study of selected ions in the ammonia desorption chemical ionization mass spectra of peracetylated gentiobiose and two isotopically labeled peracetylated gentiobioses

Study of selected ions in the ammonia desorption chemical ionization mass spectra of peracetylated gentiobiose and two isotopically labeled peracetylated gentiobioses. Peltier, John M.; Smith, Richard W.; MacLean, David B.; Szarek, Walter A. (Dep. Chem., McMaster Univ., Hamilton, ON L8S 4M1, Can.). Org. Mass Spectrom., 27(1), 31-6 (English) 1992. CODEN: ORMSBG. ISSN: 0030-493X. DOCUMENT TYPE: Journal CA Section: 33 (Carbohydrates) The ammonia desorption chem. ionization (NH3-DCI) mass spectra of peracetylated gentiobioses I (R = R1 = Ac; R = Ac, R1 = CD3CO; R = CD3CO, R1 = Ac) were examd. It is shown that the [M + NH4 - 42]+ ion is not formed direct from [M + NH4]+ by loss of ketone but appears to be formed by way of a nucleophilic acyl substitution reaction resulting in a neutral species which complexes with NH4+. I undergo cleavage at either side of the glycosidic O joining the two sugar residues, a process which is accompanied by addn. of H or Ac to afford neutral species which complex with NH4+.In this experiment, several chemicals are used like 40437-08-9 and 13100-46-4 The structures of the ions resulting from H transfer have been inferred by comparison of their mass-analyzed ion kinetic energy (MIKE) spectra with MIKE spectra of the [M + NH4]+ ions of compds. of established structure. A ring fragmentation reaction of I is reported. .