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- Title
Réactions d'addition-élmination à partir d'hétérocycles germaniés du type.
- Authors
Dousse, Gabriel; Lavayssière, Hélène; Satgé, Jacques
- Abstract
Addition-elimination reactions from germanium heterocycles . III. 2,2-Diethyl-2-germa-1,-3-oxazolidines (R = Et; X = O; Y = NH, NMe). The reactions of 2,2-diethyl-2-germa-1,3-oxazolidines with heterocumulenes (PhNCO, PhNCS, CS2, CO2, CH2CO) and carbonyl compounds (aldehydes and ketones) are studied. Generally, monoinsertion derivatives are formed by addition of one molecule of the unsaturated compound accross the GeN bond. This bond is always the most reactive center of the molecule. In the case of the carbonyl compounds used, diinsertion may occur in a second step by a further addition across a GeO bond. Generally, this latter reaction is reversible. By thermal eliminat on of (Et2GeO)n or (Et2GeS)3 the monoaddition derivatives yield the corresponding oxazolidines and thiooxazolidines. The mechanisms of these reactions are discussed.
- Publication
Helvetica Chimica Acta, 1976, Vol 59, Issue 8, p2961
- ISSN
0018-019X
- Publication type
Article
- DOI
10.1002/hlca.19760590834