| Attributes | Values |
|---|
| rdf:type
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| Description
| - Reduction of methyl-substituted titanocene dichlorides bearing pendant double bonds [TiCl2{.eta.5-C5Me4(CH2CMe=CH2)}2] (1) and [TiCl2{.eta.5-C5Me4(SiMe2(CH2)2CH=CH2)}2] (2) with magnesium yielded diamagnetic Ti(IV) compound [Ti{(.eta.1:.eta.1:.eta.5-C5Me3(CH2)(CH2CH(Me)CH2)}{.eta.5-C5Me4(CH2C(Me)=CH2)}] (4) and paramagnetic Ti(III) compound [Ti{.eta.5-C5Me4(SiMe2CH2CH=CHMe)}(.mu.-.eta.3,.eta.1:.eta.5,.eta.1(Ti:Mg){C5Me3(CH2)(SiMe2CHCHCMe)})Mg(OC4H8)2] (6), respectively. The reluctance of titanocene intermediates to undergo intramolecular cyclization to cyclopentadienyl-ring-tethered titanacycles (as typically observed) can be explained by a shortness of 2-methylallyl group and steric hindrance of its double bond in the former case and, in the latter case, by an attack of magnesium on the titanocene intermediate, faster than cyclization reaction.
- Reduction of methyl-substituted titanocene dichlorides bearing pendant double bonds [TiCl2{.eta.5-C5Me4(CH2CMe=CH2)}2] (1) and [TiCl2{.eta.5-C5Me4(SiMe2(CH2)2CH=CH2)}2] (2) with magnesium yielded diamagnetic Ti(IV) compound [Ti{(.eta.1:.eta.1:.eta.5-C5Me3(CH2)(CH2CH(Me)CH2)}{.eta.5-C5Me4(CH2C(Me)=CH2)}] (4) and paramagnetic Ti(III) compound [Ti{.eta.5-C5Me4(SiMe2CH2CH=CHMe)}(.mu.-.eta.3,.eta.1:.eta.5,.eta.1(Ti:Mg){C5Me3(CH2)(SiMe2CHCHCMe)})Mg(OC4H8)2] (6), respectively. The reluctance of titanocene intermediates to undergo intramolecular cyclization to cyclopentadienyl-ring-tethered titanacycles (as typically observed) can be explained by a shortness of 2-methylallyl group and steric hindrance of its double bond in the former case and, in the latter case, by an attack of magnesium on the titanocene intermediate, faster than cyclization reaction. (en)
- Redukce methyl-substituovaných titanocen dichloridů s visící dvojnou vazbou [TiCl2{?5-C5Me4(CH2CMe=CH2)}2] (1) a [TiCl2{?5-C5Me4(SiMe2(CH2)2CH=CH2)}2] (2) hořčíkem poskytla diamagnetickou Ti(IV) [Ti{(?1:?1:?5-C5Me3(CH2)(CH2CH(Me)CH2)}{?5-C5Me4(CH2C(Me)=CH2)}] (4) a paramagnetickou Ti(III) [Ti{?5-C5Me4(SiMe2CH2CH=CHMe)}(?-?3,?1:?5,?1(Ti:Mg){C5Me3(CH2)(SiMe2CHCHCMe)})Mg(OC4H8)2] (6) sloučeninu. Neochota titanocenových meziproduktů podléhat intramolekulární cyklizaci na titanacyklopentanové deriváty může být v prvém případě vysvětlena krátkostí 2-methylallylové skupiny a sterickým bráněním dvojné vazby, v druhém případě působením hořčíku na titanocenový meziprodukt jež je rychlejší než cyklizační reakce. (cs)
|
| Title
| - Irregular Cyclization Reactions in Titanocenes Bearing Pendant Double Bonds
- Nepravidelné cyklizační reakce titanocenů nesoucích visící dvojnou vazbu (cs)
- Irregular Cyclization Reactions in Titanocenes Bearing Pendant Double Bonds (en)
|
| skos:prefLabel
| - Irregular Cyclization Reactions in Titanocenes Bearing Pendant Double Bonds
- Nepravidelné cyklizační reakce titanocenů nesoucích visící dvojnou vazbu (cs)
- Irregular Cyclization Reactions in Titanocenes Bearing Pendant Double Bonds (en)
|
| skos:notation
| - RIV/61388955:_____/04:00101060!RIV/2005/AV0/A54005/N
|
| http://linked.open.../vavai/riv/strany
| |
| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| - P(GA203/02/0436), P(GA203/02/0774), P(GA203/99/M037), Z(AV0Z4040901), Z(MSM 113100001)
|
| http://linked.open...iv/cisloPeriodika
| |
| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
| |
| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
| |
| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/61388955:_____/04:00101060
|
| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - titanium; magnesium; titanocene (en)
|
| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...odStatuVydavatele
| - CH - Švýcarská konfederace
|
| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...i/riv/nazevZdroje
| - Journal of Organometallic Chemistry
|
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...v/svazekPeriodika
| |
| http://linked.open...iv/tvurceVysledku
| - Císařová, I.
- Mach, Karel
- Štěpnička, P.
- Gyepes, R.
- Horáček, Michal
- Kubišta, Jiří
- Lukešová, Lenka
|
| http://linked.open...n/vavai/riv/zamer
| |
| issn
| |
| number of pages
| |
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