Polycondensation vs. cyclization of divinylsubstituted silicon compounds catalyzed by transition metal complexes

Citation
B. Marciniec et al., Polycondensation vs. cyclization of divinylsubstituted silicon compounds catalyzed by transition metal complexes, MACRO SYMP, 174, 2001, pp. 137-144
Citations number
19
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR SYMPOSIA
ISSN journal
10221360 → ACNP
Volume
174
Year of publication
2001
Pages
137 - 144
Database
ISI
SICI code
1022-1360(200108)174:<137:PVCODS>2.0.ZU;2-X
Abstract
In the presence of ruthenium complexes divinyldiorganosilicon compounds und ergo de-ethenated coupling polycondensation yielding under optimum conditio ns trans-tactic polysilylene(siloxylene, silazanylene)vinylenes and poly(si lytene-arylene-vinylenes). Rhodium- ([RhX(cod)](2) X = Cl, OSiMe3) catalyze d ring closure of oligomeric (dimeric, trimeric) products of intermolecular condensation opens a new route to synthesizing organosilicon exo-cyclic me thylenes. In the presence of Ru-complexes the cross-coupling (poly)condensa tion of di- and trivinylsilicon monomers with organic dienes allows synthes es of a series of linear and dendrimeric poly(arylene-silylene-vinylene)s.