BIOSYNTHETIC ORIGIN OF OXYGEN-ATOMS IN DIMBOA FROM MAIZE - NMR-STUDIES WITH O-18(2)

Authors
GLAWISCHNIG E EISENREICH W BACHER A FREY M GIERL A
Citation
E. Glawischnig et al., BIOSYNTHETIC ORIGIN OF OXYGEN-ATOMS IN DIMBOA FROM MAIZE - NMR-STUDIES WITH O-18(2), Phytochemistry, 45(4), 1997, pp. 715-718
Citations number
15
Categorie Soggetti
Plant Sciences
Journal title
Phytochemistry → ACNP
ISSN journal
00319422
Volume
45
Issue
4
Year of publication
1997
Pages
715 - 718
Database
ISI
SICI code
0031-9422(1997)45:4<715:BOOOID>2.0.ZU;2-N
Abstract
Maize seeds were germinated in an atmosphere of O-16(2)/O-18(2). 2,4-D ihydroxy-7-methoxy-1,4-benzoxazine-3-one (DIMBOA) was isolated and ana lysed by C-13 NMR spectroscopy. Heavy isotope shifts of C-13 signals i ndicated that all four oxygen atoms bonded to carbon atoms of DIMBOA a re derived from molecular oxygen. (C) 1997 Elsevier Science Ltd.