A DYNAMIC EQUILIBRIUM OF OXAPHOSPHETANES

Authors
GELETNEKY C FORSTERLING FH BOCK W BERGER S
Citation
C. Geletneky et al., A DYNAMIC EQUILIBRIUM OF OXAPHOSPHETANES, Chemische Berichte, 126(11), 1993, pp. 2397-2401
Citations number
32
Categorie Soggetti
Chemistry
Journal title
Chemische Berichte → ACNP
ISSN journal
00092940
Volume
126
Issue
11
Year of publication
1993
Pages
2397 - 2401
Database
ISI
SICI code
0009-2940(1993)126:11<2397:ADEOO>2.0.ZU;2-8
Abstract
The course of the Wittig reaction was investigated by rapid injection NMR spectroscopy. Rate constants for the formation of oxaphosphetanes were determined. A new dynamic equilibrium of oxaphosphetanes was obse rved for the first time. The solvent and substituent dependence of the new effect was investigated. By labeling various oxaphosphetanes with C-13 and O-17 the lithium salt dependence of the new equilibrium was shown. A lithium adduct of oxaphosphetanes under these conditions is p roposed.