Synthesis and reactions of nickel and palladium carbon-bound enolate complexes

Journal Article · Mon Jan 01 00:00:00 EST 1990 · Organometallics; (USA)

DOI:https://doi.org/10.1021/om00115a007· OSTI ID:6620875

Burkhardt, E R; Bergman, R G; Heathcock, C H ^[1]

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1. Univ. of California, Berkeley (USA)

Nickel and palladium carbon-bound enolates of the general formula {eta}{sup 5}-C{sub 5}R{sub 5}(Ph{sub 3}P)MCHR{prime}COR{double prime} (R = H, CH{sub 3}; R{prime} = H, CH{sub 3}; R{double prime} = t-Bu, Ph, O-t-Bu) were prepared. Cp{sup *}(Ph{sub 3}P)NiCH{sub 2}CO{sub 2}-t-Bu (1e) was characterized by X-ray diffraction. Compound 1e crystallizes in the monoclinic space group P2{sub 1}/n with unit-cell dimensions a = 13.6110 (20) {angstrom}, b = 12.7454 (13) {angstrom}, c = 17.8571 (23) {angstrom}, {beta} = 105.544 (11){degree}, Z = 4, observed data 4,091, R = 4.53%, and R{sub w} = 4.19%. Reactions of these nickel and palladium enolates with aldehydes and other electrophilic reagents were examined. The nickel ketone enolates were shown to react with 2 equiv of benzaldehyde to deliver products resulting from a Tischtschenko-type oxidation/reduction process. Cp(Ph{sub 3}P)NiCH{sub 2}CO-t-Bu reacts with phosphines (L) to yield paramagnetic nickel(I) complexes of general formula Cp(L){sub 2}Ni.

• OSTI ID: 6620875
• Journal Information: Organometallics; (USA), Vol. 9:1; ISSN 0276-7333
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
NICKEL COMPLEXES
SYNTHESIS
PALLADIUM COMPLEXES
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
DATA ANALYSIS
ENOLS
EXPERIMENTAL DATA
ALCOHOLS
COMPLEXES
DATA
HYDROXY COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
TRANSITION ELEMENT COMPLEXES
400200* - Inorganic
Organic
& Physical Chemistry