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Synthèses et caractérisation de germylènes difonctionnels
Author(s) -
Dousse Gabriel,
Satgé Jacques
Publication year - 1977
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19770600428
Subject(s) - chemistry , bifunctional , reactivity (psychology) , nucleophile , cleavage (geology) , monomer , medicinal chemistry , divalent , stereochemistry , organic chemistry , catalysis , medicine , polymer , alternative medicine , geotechnical engineering , pathology , fracture (geology) , engineering
Syntheses and caracterization of bifunctional germylenes Several synthetic methods of bifunctional germylenes GeY 2 (Y = RO, PhO, RS, CH 3 COO, Acac; Y 2 = OCH 2 CH 2 O, SCH 2 CH 2 S) or GeXY (Y = RO, X = Cl; Y = RS, X = Cl; Y = Acac, X = Cl) such as exchange reactions, dechlorhydratation reactions and nucleophilic substitutions from GeCl 2 · dioxane are described. Some more synthesis of divalent species GeY 2 from Ge(OR) 2 by transalcoxylation and from Ge(Cp) 2 by cleavage using protic species will be presented. The stability and reactivity of these germylenes are discussed. Difunctionnal germylenes give generally a selfpolycondensation reactions. However, their reactivity in situ shows a effective participation of monomeric species GeY 2 .