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- W2951785087 abstract "Reaction regiospecifique de phosphaimines avec un complexe benzyne-zirconocene. Synthese et reactivite de nouveaux azaphosphazirconaindanes. Les azaphosphazirconaindanes (RCp) 2 ZrN(R 1 )P(NR 2 R 3 )(o-C 6 H 4 4a (R = H) et 5a,b (R = t-Bu sont regiospecifiquement prepares par simple chauffage de Cp 2 ZrMePh ou (t-BuCp) 2 ZrPh 2 2 en presence de phosphaimines R 1 N=P-NR 2 R 3 (3a: R 1 = R 2 = R 3 = SiMe 3 ; 3b: R 1 = R 2 = t-Bu, R 3 = SiMe 3 ) via un intermediaire benzyne-zirconocene. Apres reaction selective de soufre elementaire sur l'atome de phosphore, les liaisons Zr-N et Zr-C sont coupees par traitement avec le methanol conduisant aux sulfures de phosphine PhP(S)(NHR 1 )(NHR 2 ) 8a,b. Dans ces deux reactions, les complexes (t-BuCp) 2 ZrN(R 1 )P(S)(NHR 2 )(o-C6H4) 7a,b resultant de la coupure d'une liaison N-SiMe3 liee a l'atome de phosphore ont pu etre isoles. Avec la poudre de selenium, le meme comportement conduit aux complexes (t-Bucp) 2 ZrN(R)P(Se)(NHR 2 )(o-C 6 H 4 )10a,b. complexe benzyne-zirconocene / phosphaimine / azaphosphazirconaindane / sulfure de phosphine" @default.
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- W2951785087 date "1996-01-01" @default.
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- W2951785087 title "Regiospecific reaction of phosphaimines with a zirconocene-benzyne complex. Synthesis and reactivity of novel azaphosphazirconaindans" @default.
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