"Kubi\u0161ta, Ji\u0159\u00ED" . . . "RIV/61388955:_____/08:00316214!RIV09-AV0-61388955" . . . "\u010Cejka, Ji\u0159\u00ED" . "Insertion of internal alkynes and ethene into permethylated single tucked-in titanocene" . . . "Inserce intern\u00EDch alkin\u016F a ethylenu do permethylovan\u00E9ho titanocenu s jednou methylenovou vazbou"@cs . "alkynes; titanocene; ethene"@en . . "Insertion of internal alkynes and ethene into permethylated single tucked-in titanocene" . "000260383900019" . . "Inserce intern\u00EDch alkin\u016F a ethylenu do permethylovan\u00E9ho titanocenu s jednou methylenovou vazbou"@cs . "Hey-Hawkins, E." . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "Mach, Karel" . . "16"^^ . "Permethylovan\u00FD titanocen s jednou methylenovou vazbou 1 reaguje s nadbytkem intern\u00EDch alkin\u016F za tvorby 1:1 produkt\u016F 3a-3c a 3f-3i vznikaj\u00EDc\u00EDch inserc\u00ED trojn\u00E9 vazby do vazby titanu k methylenov\u00E9 skupin\u011B. Pouze v p\u0159\u00EDpad\u011B nejjednodu\u0161\u0161\u00ED molekuly 2-butinu doch\u00E1z\u00ED k inserci dvou molekul za vzniku zn\u00E1m\u00E9 slou\u010Deniny 2, na druh\u00E9 stran\u011B produkt inserce jedn\u00E9 molekuly 3j vznik\u00E1 p\u0159i stechiometrick\u00E9 reakci v pom\u011Bru 1:1. 1,4-disubstituovan\u00E9 konjugovan\u00E9 diiny s CMe3 nebo SiMe3 substituenty reaguj\u00ED stejnou cestou, ale pouze jednou trojnou vazbou za vzniku slou\u010Denin 3d a 3e. Dialkiny s dimethylsilylenov\u00FDm m\u016Fstkem Me2Si(C=CR)2 (R = SiMe3 nebo CMe3) poskytuj\u00ED reakc\u00ED obou trojn\u00FDch vazeb slou\u010Deniny 3k a 3l. Po inserci prvn\u00ED trojn\u00E9 vazby druh\u00E1 podstupuje p\u0159esmyk, kter\u00FD vy\u00FAst\u00ED v posunu substituentu a vzniku silacyklobutenov\u00E9ho kruhu spojen\u00E9ho s atomem titanu. Alkiny nesouc\u00ED objemn\u00E9 substituenty CMe3 nebo SiMe3 byly nereaktivn\u00ED."@cs . "RIV/61388955:_____/08:00316214" . "Insertion of internal alkynes and ethene into permethylated single tucked-in titanocene"@en . "Pinkas, Ji\u0159\u00ED" . . "9"^^ . "21" . "Insertion of internal alkynes and ethene into permethylated single tucked-in titanocene"@en . "Hor\u00E1\u010Dek, Michal" . . . "Organometallics" . . . "C\u00EDsa\u0159ov\u00E1, I." . "[07110C2224AE]" . . "5"^^ . . "Single tucked-in permethyltitanocene 1 reacts with excess of internal alkynes to give 1:1 adducts 3a-3c and 3f-3i arising from insertion of their triple bond into the titanium-methylene bond. Only the simplest 2-butyne inserted two molecules to give the known compound 2, however, at a 1:1 stoichiometric ratio the 1:1 adduct 3j was also smoothly formed. 1,4-Disubstituted conjugated diynes with CMe3 or SiMe3 substituents reacted in the same way by only one triple bond to give 3d and 3e, respectively. The dimethylsilylene-bridged dialkynes Me2Si(C=CR)2 (R = SiMe3 or CMe3) afforded compounds 3k and 3l with both triple bonds reacting. After insertion of the first triple bond the second one underwent a rearrangement which resulted in substituent shift and formation of a silacyclobutene ring linked to the titanium atom. The alkynes bearing both bulky substituents CMe3 or SiMe3 were unreactive."@en . "372586" . . . . "G\u00F3mez-Ruiz, S." . . . "Single tucked-in permethyltitanocene 1 reacts with excess of internal alkynes to give 1:1 adducts 3a-3c and 3f-3i arising from insertion of their triple bond into the titanium-methylene bond. Only the simplest 2-butyne inserted two molecules to give the known compound 2, however, at a 1:1 stoichiometric ratio the 1:1 adduct 3j was also smoothly formed. 1,4-Disubstituted conjugated diynes with CMe3 or SiMe3 substituents reacted in the same way by only one triple bond to give 3d and 3e, respectively. The dimethylsilylene-bridged dialkynes Me2Si(C=CR)2 (R = SiMe3 or CMe3) afforded compounds 3k and 3l with both triple bonds reacting. After insertion of the first triple bond the second one underwent a rearrangement which resulted in substituent shift and formation of a silacyclobutene ring linked to the titanium atom. The alkynes bearing both bulky substituents CMe3 or SiMe3 were unreactive." . . "Gyepes, R." . . "P(IAA400400708), P(LC06070), V, Z(AV0Z40400503)" . "0276-7333" . "27" .