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Metal reagents

The pyrometaHurgical processes, ie, furnace-kettle refining, are based on (/) the higher oxidation potentials of the impurities such as antimony, arsenic, and tin, ia comparison to that of lead and (2) the formation of iasoluble iatermetaUic compounds by reaction of metallic reagents such as 2iac with the impurities, gold, silver and copper, and calcium and magnesium with bismuth (Fig. 12). [Pg.43]

Yields are best in the case of aromatic metallic reagents. Use of aUphatic reagents favors low molecular weight products. Products often are recovered by water addition, followed by separation and distillation of the organic layer. Such procedures inevitably lead to acidic by-products when there is incomplete replacement of the halogens on phosphoms. A modification of the Wurt2 reaction sometimes is used. [Pg.379]

A. A. Morton, Solid Organoalkali Metal Reagents, Gordon Breach, New York, 1964. [Pg.520]

Mixed-Metal Systems. Mixed-metal systems, where a zirconium alkyl is formed and the alkyl group transferred to another metal, are a new apphcation of the hydrozirconation reaction. These systems offer the advantages of the easy formation of the Zr—alkyl as well as the versatiUty of alkyl—metal reagents. For example, Cp2ZrRCl (R = alkyl or alkenyl) reacts with AICI3 to give an Al—alkyl species which may then be acylated with... [Pg.440]

Synthesis of heterocycles by iodocarbocyclization and iodoaminocyclization with metal reagent participation 99SL1191. [Pg.215]

Nishiyama H., Motoyama Y. Other Transition Metal Reagents Chiral Transition-Metal Lewis Acid Catalysis for Asymmetric Organic Synthesis in Lewis Acid Reagents 1999 225, Ed Yamamoto H., Pb. Oxford Univ. Press, Oxford Keywords asymmetric Diels-Alder reactions, chiral transition metal Lewis-acid catalysis, asymmetric synthesis... [Pg.305]

For lists of reagents, with references, see Ref. 568, p. 31. For a review with respect to transition metal reagents, see Luh, T. Ni, Z. Synthesis, 1990, 89. For some very efficient nickel-containing reagents, see Becker, S. Fort, Y Vanderesse, R. Caubere, P. / Org. Chem., 1989, 54, 4848. [Pg.644]

By this method, different classes of PNs were prepared by replacing chlorine atoms of the polydichlorophosphazene intermediate by primary or secondary amines, alkoxide or aryl-oxide, or organ metallic reagents. " ... [Pg.239]

Addition of crotyl metal reagents to 4-acetoxy-l,3-dioxanes was utilized in the synthesis of dipropionate synthons [52] (Scheme 22). These reactions... [Pg.75]

Richmond TG (1999) Metal Reagents for Activation and Functionalization of Carbon-Fluorine Bonds. 3 243-269... [Pg.293]


See other pages where Metal reagents is mentioned: [Pg.9]    [Pg.185]    [Pg.212]    [Pg.345]    [Pg.356]    [Pg.83]    [Pg.189]    [Pg.78]    [Pg.195]    [Pg.22]    [Pg.46]    [Pg.219]    [Pg.229]    [Pg.229]    [Pg.231]    [Pg.233]    [Pg.235]    [Pg.237]    [Pg.239]    [Pg.241]    [Pg.243]    [Pg.245]    [Pg.247]    [Pg.249]    [Pg.299]    [Pg.2091]    [Pg.131]    [Pg.51]    [Pg.51]    [Pg.74]    [Pg.80]    [Pg.3]    [Pg.7]    [Pg.74]    [Pg.81]    [Pg.777]    [Pg.1161]    [Pg.9]   
See also in sourсe #XX -- [ Pg.524 ]




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Acyclic stereoselective synthesis allyl metal reagents

Acyclic stereoselective synthesis crotyl metal reagents

Aldehydes with metal hydride reagents

Alkali Metal Reagents

Alkyl halides with transition metal reagents

Alkynes, metal mediated reagents

Anionic Transition Metal Reagents

Azaallyl metal reagents

Azaallyl metal reagents carboxylic acids

Azaallyl metal reagents formation

Azaallyl metal reagents from hydrazones

Azaallyl metal reagents structure

Base metal recovery reagents

Carbonyl compounds with metal hydride reagents

Chiral Propargyl-or Allenyl-Metal Reagents

Chiral metal hydride reagents

Complexes, alkyne-metal Grignard reagents

Condensation acylic stereocontrol, allyl metal reagents

Cross-Coupling reactions, transition-metal-catalyzed Grignard reagents

Cyanides reactions, metal cyanide reagents

Electrophilic additions metal-containing reagents

Functionalized Grignard reagents metalation

Germyl-Alkali-Metal Reagents

Grignard and Alkali-Metal Reagents

Grignard reagent metal compound reaction with

Grignard reagent metal halide reaction with

Grignard reagent metallation with

Grignard reagent, transition metals

Grignard reagents metal-catalysis

Grignard reagents with metal halides

Grignard reagents with metallic anodes

Grignard reagents, bonding metal catalyzed addition

Halogen-metal exchange reagents

Halogen/metal interconversion organolithium reagents

Halogen/metal interconversion reagents

Heavy metal reagent

Hydrides metal hydride reagents

Immobilization of metallic reagent

Ketone with metal hydride reagents

Leaching, from supported metal reagents

Lewis Acid Property of Alkali Metals in Organoalkali Metal Reagents

Lewis Acidic Functions of Alkali Metal in Organometallic Reagents as Nucleophile

Metal Analytical Reagents

Metal catalyzed coupling Grignard reagents

Metal hydride reagents

Metal hydride reagents reducing agents

Metal impurities removal from reagent

Metal insertion Grignard reagents

Metal liquid reagents, attack

Metal mediated, acylation reagents

Metal organic reagents

Metalated Reagents as Catalysts

Metalating reagent

Metallation of Various Olefins with Strongly Basic Reagents

Metals as Antitumor Reagents

Metals, reagents for

Non-metallic reagents

Organic reagents, heavy metal removal from

Organoalkali metal reagents

Organolithium reagents metal-halogen exchange

Organolithium reagents, addition metalation

Organometallic Reagents 2 From Metallated Phosphines

Organozinc reagents transition-metal-catalyzed cross-coupling

Pinacol coupling metal reagents

Platinum group metals reagent practice in flotation

Polymer-supported reagents transition metal catalysts

Radical Reaction Mediated by Grignard Reagents in the Presence of Transition Metal Catalyst

Reactions of Transition Metal Compounds with Alkylating or Arylating Reagents

Reactions with transition metal reagents

Reagents Derived from the 3rd-to-5lh-Pcriod Non-Metals, Silicon through Xenon

Reagents Derived from the 3rd-to-5th-Period Non-Metals, Silicon through Xenon

Reagents Derived from the Metals Lithium through Uranium, plus Electrons and Photons

Reagents Derived from the Other 2nd-Period Non-Metals, Boron through Fluorine

Reagents metal acetylide

Reagents metal cyanide

Reagents metal/carbon nucleophile reactions

Reduction with metal hydride reagents

Ritter reaction metallic reagents

Silyl—Alkali Metal Reagents

Stannyl-Active Metal Reagents

Stannyl-Alkali Metal Reagents

Transition Metal Olefination Reagents

Transition metal halides complex Lewis acid reagent

Transition metal halides reagents

Transition metal organometallic synthesis reagents

Transition metal oxidizing reagents

Transition metal-catalyzed coupling of organometallic reagents with organic halides and related electrophiles

Transition-Metal-Catalyzed Cross-Coupling Reactions of Organomagnesium Reagents

Transition-Metal-Catalyzed Cross-Coupling Reactions of Organozinc Reagents

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