RADIOLYSIS MECHANISM OF BAICALIN AQUEOUS- SOLUTION SATURATED WITH N2O

Authors
CAI ZL WU JL HE YK JIN HF YUAN RY
Citation
Zl. Cai et al., RADIOLYSIS MECHANISM OF BAICALIN AQUEOUS- SOLUTION SATURATED WITH N2O, Huaxue xuebao, 55(4), 1997, pp. 334-340
Citations number
6
Categorie Soggetti
Chemistry
Journal title
Huaxue xuebao → ACNP
ISSN journal
05677351
Volume
55
Issue
4
Year of publication
1997
Pages
334 - 340
Database
ISI
SICI code
0567-7351(1997)55:4<334:RMOBAS>2.0.ZU;2-B
Abstract
Gama(gamma) radiolysis of N2O saturated baicalin aqueous solution was studied. Four major final products(P1,P2,P3,P4) were seperated, and th eir structures were determined by UV, MS and NMR. It was confirmed tha t P1 and P2 came from OH radical addition to ring C,but P3 and P4 orig inated from the disproportionation reaction of OH adduct-radicals of r ing B. The rate constant, 2.6 x 10(9) mol(-1). dm(3) . s(-1) of OH rad ical addition to aglycqne was derived.