SILYLATION OF SILYLKETENES

Authors
NIKOLAEVA SN PONOMAREV SV PETROSYAN VS LORBERTH J
Citation
Sn. Nikolaeva et al., SILYLATION OF SILYLKETENES, Journal of organometallic chemistry, 535(1-2), 1997, pp. 213-215
Citations number
9
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Journal of organometallic chemistry → ACNP
ISSN journal
0022328X
Volume
535
Issue
1-2
Year of publication
1997
Pages
213 - 215
Database
ISI
SICI code
0022-328X(1997)535:1-2<213:SOS>2.0.ZU;2-9
Abstract
Silylation of silylketenes RSiCH=C=O 1 (a, R=Et-3; b, R=(BuMe2)-Bu-t; c, :R=Pr-i(3)) with trimethylsilyltriflate in the presence of triethyl amine was studied. Mixtures of the corresponding 1-trimethylsiloxy-2-s ilylethynes RSiC=COSiMe3 2 and trimethylsilyl(silyl)ketenes RSi(Me3Si) C=C=O 3 in the case of la and Ib were obtained. By this reaction only 2c was prepared from Ic. Heating of mixtures of 2a, 3a and 2b, 3b at 1 00-110 degrees C affords pure ketenes 3a and 3b respectively; heating of 2c under the same conditions takes place practically without rearra ngement. (C) 1997 Elsevier Science S.A.