TY - JOUR
T1 - P-H functionalised phosphinoalkoxides as ligands
T2 - Synthesis and catalytic properties of [Cp2Zr(Me)(cyclo-1-O-2-PH(Tipp)-C6H10)] (Tipp=2,4,6-Pri3C6H2), [Cp2Zr(Me)(cyclo-1-O-2-PH(Tipp){Mo(CO)5}-C 6H10)] and Cp2Zr(BH4) [Cp2Zr(BH4).
AU - Koch, Thomas
AU - Blaurock, Steffen
AU - Hey-Hawkins, Evamarie
AU - Galan-Fereres, Mercedes
AU - Plat, Dorit
AU - Eisen, Moris S.
N1 - Funding Information:
We gratefully acknowledge financial support from the German–Israeli Foundation grant no. I-142/95, the Fonds der Chemischen Industrie and the Fund for the Promotion of Research at the Technion. S.B. acknowledges support by the Sächsisches Ministerium für Wissenschaft und Kunst (Landesgraduiertenstipendium).
PY - 2000/1/31
Y1 - 2000/1/31
N2 - The P-H functionalised phosphinoalcohol 1-PH(Tipp)-2-OH-cyclo-C6H10 (Tipp=2,4,6-Pri3C6H2) reacts with [Cp2ZrMe2] with elimination of methane to give exclusively the mono-substituted product [Cp2Zr(Me)(cyclo-1-O-2-PH(Tipp)-C6H10)] (1), even at elevated temperature. 1 reacts with [Mo(CO)5(NMe3)] to give the heterodinuclear complex [Cp2Zr(Me)(cyclo-1-O-2-PH(Tipp){Mo(CO)5}-C 6H10)] (2). The borane adduct [Cp2Zr(BH4)(cyclo-1-O-2-PH(Mes)(BH3)-C 6H10)] (3, Mes=2,4,6-Me3C6H2) was obtained from [Cp2Zr(BH4)2] and 1-PH(Mes)-2-OH-cyclo-C6H10 in boiling hexane. 1-3 were characterised spectroscopically (1H, 13C, 31P, 11B (for 3), MS, and IR). A crystal structure determination of the RC,RC,RP/SC,SC,S P isomer of 1 was obtained. The complexes 1-3 were studied in the catalytic polymerisation of ethylene and propylene by activating them with methylalumoxane (MAO) as cocatalyst.
AB - The P-H functionalised phosphinoalcohol 1-PH(Tipp)-2-OH-cyclo-C6H10 (Tipp=2,4,6-Pri3C6H2) reacts with [Cp2ZrMe2] with elimination of methane to give exclusively the mono-substituted product [Cp2Zr(Me)(cyclo-1-O-2-PH(Tipp)-C6H10)] (1), even at elevated temperature. 1 reacts with [Mo(CO)5(NMe3)] to give the heterodinuclear complex [Cp2Zr(Me)(cyclo-1-O-2-PH(Tipp){Mo(CO)5}-C 6H10)] (2). The borane adduct [Cp2Zr(BH4)(cyclo-1-O-2-PH(Mes)(BH3)-C 6H10)] (3, Mes=2,4,6-Me3C6H2) was obtained from [Cp2Zr(BH4)2] and 1-PH(Mes)-2-OH-cyclo-C6H10 in boiling hexane. 1-3 were characterised spectroscopically (1H, 13C, 31P, 11B (for 3), MS, and IR). A crystal structure determination of the RC,RC,RP/SC,SC,S P isomer of 1 was obtained. The complexes 1-3 were studied in the catalytic polymerisation of ethylene and propylene by activating them with methylalumoxane (MAO) as cocatalyst.
KW - Borane adduct
KW - Heterodinuclear molybdenum phosphine complex
KW - P-H functionalised phosphinoalkoxide
KW - Zirconocene complex
UR - http://www.scopus.com/inward/record.url?scp=0000935974&partnerID=8YFLogxK
U2 - 10.1016/S0022-328X(99)00597-5
DO - 10.1016/S0022-328X(99)00597-5
M3 - 文章
AN - SCOPUS:0000935974
SN - 0022-328X
VL - 595
SP - 126
EP - 133
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 1
ER -