Unusual oxidation reaction of an overcrowded thiagermacyclohexene derivative

Authors
Tokitoh, N El-Sayed, IE Okazaki, R
Citation
N. Tokitoh et al., Unusual oxidation reaction of an overcrowded thiagermacyclohexene derivative, CHEM LETT, (2), 1999, pp. 129-130
Citations number
8
Categorie Soggetti
Chemistry
Journal title
CHEMISTRY LETTERS
ISSN journal
03667022 → ACNP
Issue
2
Year of publication
1999
Pages
129 - 130
Database
ISI
SICI code
0366-7022(199902):2<129:UOROAO>2.0.ZU;2-2
Abstract
Oxidation of extremely overcrowded 1,2-thiagermacyclohex-4-ene derivatives with m-chloroperbenzoic acid resulted in competitive formation of the ring expanded 1,2,7-oxathiagermacyclohept-4-ene derivatives and the ring contrac ted 1,2,3-oxathiagermacyclopentane derivatives. The latter reaction product s are found to isomerize into the former ones very slowly at room temperatu re not only in solution but also in the crystalline state.