ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7
Infrared-spectra of 2,3-dicarboxy derivatives of pectic acid
Mp. Filippov, A. Malovíková, and R. Kohn
Centre for Automation of Scientific Research and Metrology,
Academy of Sciences of Moldavian SSR, SU-277028 Kishinev
Abstract: A series of 2,3-dicarboxy derivatives of sodium pectate (oxidation degree
DO 0.0 to 0.5) was obtained by a two-step oxidation of potassium pectate by
NaIO4 and NaClO2; their IR spectra were measured using a KBr technique.
The spectra were interpreted considering mainly the structural changes evoked
by oxidation of pectic acid, i.e. by opening of the pyran ring of D-galacturonic
acid units and formation of couples of new (C-2) and (C-3) carboxyl groups.
Properties of these carboxyl groups are different from those of uronic acids.
Full paper in Portable Document Format: 395a693.pdf
Chemical Papers 39 (5) 693–703 (1985)