Preparation and first X-ray structure of a zirconocene β-keto ester enolate

被引：15

作者：

Stuhldreier, T

Keul, H

Höcker, H

Englert, T

机构：

[1] Rhein Westfal TH Aachen, Inst Tech Chem & Makromol Chem, D-52056 Aachen, Germany

[2] Rhein Westfal TH Aachen, Inst Anorgan Chem, D-52056 Aachen, Germany

来源：

ORGANOMETALLICS | 2000年 / 19卷 / 24期

关键词：

D O I：

10.1021/om000786+

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of methyl 2-ethylbutyrate with an equimolar amount of lithium diisopropylamide (LDA) leads to the formation of the lithium enolate of methyl 2,2,4-triethyl-3-oxohexanoate. Further reaction with bis(cyclopentadienyl)zirconium(methyl)chloride yields a crystalline zirconocene enolate complex, the structure of which was determined by X-ray diffraction.

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页码：5231 / 5234

页数：4

相关论文

共 19 条

[1] REACTIVITY OF TITANOCENEVINYLIDENE WITH ENOLIZABLE KETONES CP-ASTERISK-TI-2(CH=CH2)(OC(=CH2)C6H11), AN ENOLATE WITH AN UNUSUALLY OBTUSE TI-O-C ANGLE [J].

BECKHAUS, R ;

STRAUSS, I ;

WAGNER, T .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1994, 464 (02) :155-161

[2] GROUP-TRANSFER POLYMERIZATION USING METALLOCENE CATALYSTS - PROPAGATION MECHANISMS AND CONTROL OF POLYMER STEREOCHEMISTRY [J].

COLLINS, S ;

WARD, DG ;

SUDDABY, KH .

MACROMOLECULES, 1994, 27 (24) :7222-7224

[3] PREPARATION, REACTIVITY, AND X-RAY STRUCTURE OF A CATIONIC ALKOXYZIRCONOCENE COMPLEX [J].

COLLINS, S ;

KOENE, BE ;

RAMACHANDRAN, R ;

TAYLOR, NJ .

ORGANOMETALLICS, 1991, 10 (07) :2092-2094

[4] ZIRCONIUM-ASSISTED ALDOL CONDENSATION-REACTIONS OF AMIDO ENOLATES - STRUCTURAL AND KINETIC-ANALYSIS OF THE REACTION OF N,N-DIPHENYLACETAMIDE AND N,N-DIPHENYLACETAMIDE ENOLATES WITH BENZALDEHYDE AND P-SUBSTITUTED ACETOPHENONES [J].

COZZI, PG ;

VEYA, P ;

FLORIANI, C ;

ROTZINGER, FP ;

CHIESIVILLA, A ;

RIZZOLI, C .

ORGANOMETALLICS, 1995, 14 (09) :4092-4100

[5] SIMPLE SYNTHESIS OF ENOLATE COMPLEXES OF TITANOCENE AND ZIRCONOCENE - MOLECULAR-STRUCTURE OF CP2TI(OC2H3)2 [J].

CURTIS, MD ;

THANEDAR, S ;

BUTLER, WM .

ORGANOMETALLICS, 1984, 3 (12) :1855-1859

[6] INSERTION OF CO2-LIKE MOLECULES INTO ZIRCONIUM CARBON BONDS - REACTIVITY OF DIALKYLBIS(CYCLOPENTADIENYL)ZIRCONIUM(IV) WITH DIPHENYLKETENE, ARYL ISOCYANATES, AND P-TOLYLCARBODIIMIDE [J].

GAMBAROTTA, S ;

STROLOGO, S ;

FLORIANI, C ;

CHIESIVILLA, A ;

GUASTINI, C .

INORGANIC CHEMISTRY, 1985, 24 (05) :654-660

[7] KETENE ACETAL METALLOCENE COMPLEXES - CRYSTAL-STRUCTURE OF (C5H5)2TI(CL)OC(OCH3)=C(CH3)2 [J].

HORTMANN, K ;

DIEBOLD, J ;

BRINTZINGER, HH .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1993, 445 (1-2) :107-109

[8] ON THE STRUCTURE AND REACTIVITY OF LITHIUM DIISOPROPYLAMIDE (LDA) IN HYDROCARBON SOLUTIONS - FORMATION OF UNSOLVATED KETONE, ESTER, AND CARBOXAMIDE ENOLATES [J].

KIM, YJ ;

BERNSTEIN, MP ;

ROTH, ASG ;

ROMESBERG, FE ;

WILLIARD, PG ;

FULLER, DJ ;

HARRISON, AT ;

COLLUM, DB .

JOURNAL OF ORGANIC CHEMISTRY, 1991, 56 (14) :4435-4439

[9] STEREOSPECIFIC SYNTHESIS OF A METALLO-ENOLATE - E-[ZR(OC(SIME3)=CH9-ANTHRYL)CL(ETA-C5H5)2] (STRUCTURALLY CHARACTERIZED) VIA CARBONYLATION OF [ZR(CH(SIME3)9-ANTHRYL)CL(ETA-C5H5)2] [J].

LAPPERT, MF ;

RASTON, CL ;

ENGELHARDT, LM ;

WHITE, AH .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1985, (08) :521-522

[10] Polymerization of methyl methacrylate using zirconocene initiators: Polymerization mechanisms and applications [J].

Li, YF ;

Ward, DG ;

Reddy, SS ;

Collins, S .

MACROMOLECULES, 1997, 30 (07) :1875-1883