About: Synthesis and Fluxional Behavior of New %22Haevy Fluorous%22 Cyclopentadienes.

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About: Synthesis and Fluxional Behavior of New %22Haevy Fluorous%22 Cyclopentadienes. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The new heavy fluorous cyclopentadienes C5H6-n[M(C2H4C6F13)3]n (M = Si, n = 1 (3); n = 2 (4) and M = Sn, n = 1 (10)) were synthesized by reaction of cyclopentadienyl lithium with BrSi(C2H4C6F13)3 (2) or BrSn(C2H4C6F13)3. Fluorous cyclopentadienes prepared in this manner contain three or six C6F13 groups, which significantly increase their solubility in perfluorinated solvents. They also provide intermediates for titanium complexes suitable for fluorous biphase catalysis. All three isomers of silylcyclopentadienes 3 and 4 were identified and fully characterized by two dimensional NMR spectroscopy, which was performed at low temperature. The allylic isomers 3a and 4a undergo degenerate metallotropic rearrangement. This fluxional behaviour was compared with the behaviour of previously prepared cyclopentadienes 6 and 7 (C5H6-n[SiMe2(C2H4C8F17)]n where n = 1, 2, respectively). The new heavy fluorous cyclopentadienes C5H6-n[M(C2H4C6F13)3]n (M = Si, n = 1 (3); n = 2 (4) and M = Sn, n = 1 (10)) were synthesized by reaction of cyclopentadienyl lithium with BrSi(C2H4C6F13)3 (2) or BrSn(C2H4C6F13)3. Fluorous cyclopentadienes prepared in this manner contain three or six C6F13 groups, which significantly increase their solubility in perfluorinated solvents. They also provide intermediates for titanium complexes suitable for fluorous biphase catalysis. All three isomers of silylcyclopentadienes 3 and 4 were identified and fully characterized by two dimensional NMR spectroscopy, which was performed at low temperature. The allylic isomers 3a and 4a undergo degenerate metallotropic rearrangement. This fluxional behaviour was compared with the behaviour of previously prepared cyclopentadienes 6 and 7 (C5H6-n[SiMe2(C2H4C8F17)]n where n = 1, 2, respectively). (en)
Title	Synthesis and Fluxional Behavior of New %22Haevy Fluorous%22 Cyclopentadienes. Synthesis and Fluxional Behavior of New %22Haevy Fluorous%22 Cyclopentadienes. (en)
skos:prefLabel	Synthesis and Fluxional Behavior of New %22Haevy Fluorous%22 Cyclopentadienes. Synthesis and Fluxional Behavior of New %22Haevy Fluorous%22 Cyclopentadienes. (en)
skos:notation	RIV/67985858:_____/10:00341109!RIV10-MSM-67985858
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA400720706), P(LC06070), Z(AV0Z40720504)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Šťastná, Lucie Cuřínová, Petra Čermák, Jan Sýkora, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav chemických procesů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	291480
http://linked.open...ai/riv/idVysledku	RIV/67985858:_____/10:00341109
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	heavy fluorous; cyclopentadiene; polyfluoroalkylsilane (en)
http://linked.open.../riv/klicoveSlovo	heavy fluorous polyfluoroalkylsilane cyclopentadiene
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[042C43C30E2E]
http://linked.open...i/riv/nazevZdroje	Journal of Organometallic Chemistry
http://linked.open...in/vavai/riv/obor	CC
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Structure of silyl moieties through J(29Si-13C) couplings as determined by triple {1H, 13C}29Si NMR experiments The structure and synthetic applications of transition metal complexes
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	695
http://linked.open...iv/tvurceVysledku	Cuřínová, Petra Sýkora, Jan Čermák, Jan Červenková Šťastná, Lucie
http://linked.open...ain/vavai/riv/wos	000274285200009
http://linked.open...n/vavai/riv/zamer	Investigation of multiphase reacting systems for the design of processes important in synthesis and preparation of novel materials, in energy production and in environmental protection
issn	0022-328X
number of pages	9 (xsd:int)

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