Über oligomere siliciumverbindungen mit funktionellen gruppen. 10. Mitt. Über die herstellung von ω‐chlor‐ und ω‐chlor‐ω′‐chlormethylpolysiloxanen

Greber, Von Gerd; Reese, Eckart; Tölle, Joachim

doi:10.1002/macp.1962.020550107

Cited by 14 publications

(5 citation statements)

References 6 publications

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“…The following compounds were synthesized by literature procedures: (chlormethyl)-dimethyl-t-butoxysilane [7], (chlormethyl)-dimethyl-i-propoxysilane [7], (chlormethyl)-dimethylsilanol [10], (chlormethyl)-dimethylsilanolat-lithium (13) [11]. Glassware was heated under a vacuum prior to use.…”

Section: Methodsmentioning

confidence: 99%

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Synthesis, Structure, and Reactivity of Metal Complexes with Alkoxysilylmethyl Ligands

Enders

Fink

Maillant

et al. 2001

Z. anorg. allg. Chem.

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The synthesis and properties of the new metal complexes 1, 6±12 with alkoxysilylmethy substituents (RO±SiR' 2 ±CH 2 ±ML n ) is described. The complexes 14, 15 and 18 with a chloromethylsiloxy ligand were also prepared. These molecules should serve as starting compounds for the synthesis of metallasilaoxetanes. Several reactions which should lead to these new metallacycles have been performed, but it was never possible to isolate them or to proof their existence spectroscopically. However, chloride abstrac-tion from (C 5 H 5 ) 2 Ti(Cl)CH 2 Si(CH 3 ) 2 O t Bu (7) by silver cations led to the activation of the Si±O±R group. This indicates an interaction of the oxygen atom with the metal atom, but there was no proof for the intermediate formation of a four membered metallacycle. Synthese, Struktur und Reaktivita È t von Metallkomplexen mit Alkoxysilylmethyl-LigandenInhaltsu È bersicht. Die Synthese und Eigenschaften der neuen Metallkomplexe 1, 6±12 mit Alkoxysilylmethyl-Substituenten (RO±SiR' 2 ±CH 2 ±ML n ) wird beschrieben. Zusa È tzlich wurden die Komplexe 14, 15 und 18 mit Chloromethylsiloxy-Liganden hergestellt. Diese Moleku È le sollten als Edukte zur Synthese von Metallasilaoxetanen dienen. Es wurden verschiedene Reaktionen durchgefu È hrt welche zu diesen neuen Metallazyklen fu È hren sollten, eine Isolierung oder der spektroskopische Nachweis gelang aber nicht. Allerdings fu È hrte die Chloridabstraktion aus (C 5 H 5 ) 2 Ti(Cl)CH 2 Si-(CH 3 ) 2 O t Bu (7) mit Hilfe von Silber-Kationen zur Aktivierung der Si±O±R-Gruppe. Diese Reaktivita È t weist auf eine Wechselwirkung des Sauerstoffatoms mit dem Metallatom hin, die intermedia È re Bildung eines viergliedrigen Metallazyklus kann jedoch nicht nachgewiesen werden.

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Section: Methodsmentioning

confidence: 99%

“…Therefore (chloromethyl)dimethylsilanol has been synthesised by treatment of (chloromethyl)dimethylsilylchloride with aqueous ammonia [10]. Therefore (chloromethyl)dimethylsilanol has been synthesised by treatment of (chloromethyl)dimethylsilylchloride with aqueous ammonia [10].…”

Section: Metallocene Derivatives With Chloromethylsiloxy Substituentsmentioning

confidence: 99%

Synthesis, Structure, and Reactivity of Metal Complexes with Alkoxysilylmethyl Ligands

Enders

Fink

Maillant

et al. 2001

Z. anorg. allg. Chem.

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“…Th., Sdp.,,,,,: 195"C,n3: 1,4772,dZO: 0,9330. C,,H,,0,Si2 (248,45) Analog wurden die Verbindungen mit n = 2, 3 und 4 hergestellt. Ber.…”

Section: 9-bis-(y-hydroxypropyl)-pentasiloxanunclassified

“…: 5 yo d. Th. Herstellung der w,w'-Bis-(y-trimethylsiloxypropy1)-polysilmethylene (11 ) 66 g (0,5 Mol) Gef. C 52,23 H 11,08…”

Section: N =unclassified

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Über oligomere Siliciumverbindungen mit funktionellen Gruppen. 12. Mitt. Über Herstellung von oligomeren siliciumorganischen Diolen und Diaminen und ihre Umsetzungen mit organischen Diisocyanaten

Greber

Jäger

1962

Makromol. Chem.

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Organopolysilanes as photopolymerization initiators of polymethylvinylsiloxanes and polydimethylsiloxanes

Semenov¹,

Cherepennikova²,

Artemicheva³

et al. 1990

Applied Organom Chemis

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The organopolysilanes Me(Me2Si)nMe (n = 4–6), (Me2Si)6 and (Me3Si)2SiMePh are found to be effective photoinitiators for the polymerization of vinyl‐containing siloxane rubbers. The trisilanes Me(ME2Si)3Me and Me3SiSiMe2SiMe2Ph are slightly effective, while phenyldisilanes do not exhibit initiation activity in the process of photocuring. Polydimethylsiloxanes are cured at a slower rate under the same conditions than vinylcontaining derivatives. Two mechanisms of crosslinking are proposed: silylene–silirane–silanol and silylene–hydride–silanol.

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Über oligomere siliciumverbindungen mit funktionellen gruppen. 10. Mitt. Über die herstellung von ω‐chlor‐ und ω‐chlor‐ω′‐chlormethylpolysiloxanen

Cited by 14 publications

References 6 publications

Synthesis, Structure, and Reactivity of Metal Complexes with Alkoxysilylmethyl Ligands

Synthesis, Structure, and Reactivity of Metal Complexes with Alkoxysilylmethyl Ligands

Über oligomere Siliciumverbindungen mit funktionellen Gruppen. 12. Mitt. Über Herstellung von oligomeren siliciumorganischen Diolen und Diaminen und ihre Umsetzungen mit organischen Diisocyanaten

Organopolysilanes as photopolymerization initiators of polymethylvinylsiloxanes and polydimethylsiloxanes

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