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Acetylacetone, copper salt

CHROMIUM TRIOXIDE-PYRIDINE COMPLEX, preparation in situ, 55, 84 Chrysene, 58,15, 16 fzans-Cinnamaldehyde, 57, 85 Cinnamaldehyde dimethylacetal, 57, 84 Cinnamyl alcohol, 56,105 58, 9 2-Cinnamylthio-2-thiazoline, 56, 82 Citric acid, 58,43 Citronellal, 58, 107, 112 Cleavage of methyl ethers with iodotri-methylsilane, 59, 35 Cobalt(II) acetylacetonate, 57, 13 Conjugate addition of aryl aldehydes, 59, 53 Copper (I) bromide, 58, 52, 54, 56 59,123 COPPER CATALYZED ARYLATION OF /3-DlCARBONYL COMPOUNDS, 58, 52 Copper (I) chloride, 57, 34 Copper (II) chloride, 56, 10 Copper(I) iodide, 55, 105, 123, 124 Copper(I) oxide, 59, 206 Copper(ll) oxide, 56, 10 Copper salts of carboxylic acids, 59, 127 Copper(l) thiophenoxide, 55, 123 59, 210 Copper(l) trifluoromethanesulfonate, 59, 202... [Pg.114]

The planar configuration of quadricovalent copper(Il) was discovered by Cox and Webster21 in the compounds of copper with 0-dike-tones (copper disalicyl ldoxime, copper acetylacetonate, copper ben-zoylacetonate, the copper salt of dipropionylmethane) and by Tunell, Posnjak, and Ksanda22 in the mineral tenorite, CuO. In crystalline cupric chloride dihydrate (Fig. 5-9) there are molecules with the planar configuration23... [Pg.158]

In some preliminary studies on the eflFect of the metallic anion a series of reactions was run in which chloride in both the palladium and copper salts was replaced by other anions. When acetate was used, results similar to the chloride systems were obtained although product distribution was somewhat different see also Table 1). Both bromide and iodide were found to inhibit the reaction, and no products were isolated. For the oxyanions, nitrate, sulfate, and acetylacetonate, vinyla-tion products of these oxyanions in addition to the acetate vinylation products were found. Because of the increased complexity of these systems, they were not investigated further. All chloride-containing systems investigated—PdCl2, Na2PdCl4, (NH3)2PdCl2, and 7r-allylpalladium chloride—had similar reactivities and vinylation-product distributions. [Pg.114]

Section B gives some examples of metal-catalyzed cyclopropanations. In Entries 7 and 8, Cu(I) salts are used as catalysts for intermolecular cyclopropanation by ethyl diazoacetate. The exo approach to norbornene is anticipated on steric grounds. In both cases, the Cu(I) salts were used at a rather high ratio to the reactants. Entry 9 illustrates use of Rh2(02CCH3)4 as the catalyst at a much lower ratio. Entry 10 involves ethyl diazopyruvate, with copper acetylacetonate as the catalyst. The stereoselectivity of this reaction was not determined. Entry 11 shows that Pd(02CCH3) is also an active catalyst for cyclopropanation by diazomethane. [Pg.930]

MCjSO solution Hibbert (1974) Protonated amine salt with magnesium tristhexafluoro-acetylacetonate) (Truter and Vickery, 1972) CFjCOOH solution (Alder el al., 1968) Altman el al. (1978) Protonated amine salt with copper(ll) tris(hexafluoroacetylacetonate) (Truter and Vickery, 1972) Hydrobromide salt (Pyzalka el al., 1983) Staab el al. (1983) Staab el al. (1988a) Saupe ei al. (1986) Staab and Saupe (1988) Staab el al. (1988b) "Zirnstein and Staab (1987). [Pg.323]

Yamamoto and coworkers studied the substitution of ally lie phosphates by Grignard reagents in the presence of copper or iron salts. Only the Sn2 product is formed under copper catalysis whereas, in the presence of iron(III) acetylacetonate, the Sn2 product is generally obtained with an excellent selectivity (Scheme 49). It should be noted that aryl-, alkenyl-, aUcynyl- and aUcyhnagnesium halides can be used successfully. [Pg.621]

B.P.), the mixture being cooled in ice and salt. After 30 minutes the copper chloride is filtered off and the chloroform removed from the filtrate by a current of air, 17 grams (78 per cent, yield) of pure selenium acetylacetone remaining.1... [Pg.86]

Among the electrochemical syntheses related to the change of metal oxidation number, we emphasize obtaining acetylacetonates of divalent iron, cobalt, and nickel [551,623]. The method of alternating-current electrochemical synthesis was applied to isolate Ji-complexes of monovalent copper with allylamines, allylimines, and ally-lurea from the salts of divalent copper [624-628], We note that the same method was used for preparation of analogous ji-complexes with copper(II) halides (X = Cl, Br) [629a]. Other electrochemical syntheses with participation of metal salts and complexes are described in monographs [201,202] and literature cited therein. [Pg.267]

Rana and Teotia 116) have reported the synthesis of a novel tridentate macrocycle 136 by the reaction of 2,6-dipicolinic acid hydrazide and acetylacetone in the presence of cobalt(II), nickel(II), and copper(II) salts. As is frequently the case, water occupies the axial positions of these trigonal bipyramidal complexes and the chelating nitrogen atoms are essentially coplanar. [Pg.103]


See other pages where Acetylacetone, copper salt is mentioned: [Pg.863]    [Pg.863]    [Pg.253]    [Pg.4]    [Pg.863]    [Pg.99]    [Pg.6]    [Pg.83]    [Pg.88]    [Pg.89]    [Pg.89]    [Pg.92]    [Pg.176]    [Pg.95]    [Pg.597]    [Pg.677]    [Pg.176]    [Pg.863]    [Pg.863]    [Pg.55]    [Pg.295]    [Pg.788]    [Pg.377]    [Pg.238]    [Pg.633]    [Pg.44]    [Pg.220]    [Pg.633]   
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See also in sourсe #XX -- [ Pg.6 , Pg.20 ]

See also in sourсe #XX -- [ Pg.6 , Pg.20 ]

See also in sourсe #XX -- [ Pg.6 , Pg.20 ]

See also in sourсe #XX -- [ Pg.6 , Pg.20 ]

See also in sourсe #XX -- [ Pg.6 , Pg.20 ]

See also in sourсe #XX -- [ Pg.6 , Pg.20 ]

See also in sourсe #XX -- [ Pg.6 , Pg.20 ]

See also in sourсe #XX -- [ Pg.6 , Pg.20 ]

See also in sourсe #XX -- [ Pg.6 , Pg.20 ]

See also in sourсe #XX -- [ Pg.6 , Pg.20 ]

See also in sourсe #XX -- [ Pg.6 , Pg.20 ]

See also in sourсe #XX -- [ Pg.6 , Pg.20 ]




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Acetylacetonate

Acetylacetone

Acetylacetones

Copper acetylacetonate

Copper acetylacetone

Copper salts

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