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Halide compounds

The Alkyl Halides. Ethyl bromide and iodide (see below) are typical alkyl halides. Compounds of this class are of very great importance in synthetic work, owing to the reactivity of the halogen atom. This is illustrated by the following reactions ... [Pg.103]

Many successful regioselective syntheses of heterocydes, however, are more complex than the examples given so far. They employ condensation of two different carbonyl or halide compounds with one nitrogen base or the condensation of an amino ketone with a second difunctional compound. Such reactions cannot be rationalized in a simple way, and the literature must be consulted. [Pg.150]

Notice that all the examples m Table 8 1 involve alkyl halides, that is compounds m which the halogen is attached to an sp hybridized carbon Alkenyl halides and aryl halides, compounds m which the halogen is attached to sp hybridized carbons are essentially unreactive under these conditions and the principles to be developed m this chapter do not apply to them... [Pg.327]

Reduction. Hafnium oxide can be reduced using calcium metal to yield a fine, pyrophoric metal powder (see Calciumand calciumalloys). This powder contains considerable oxygen contamination because of oxygen s high solubility in hot hafnium, and caimot be consoHdated into ductile metal. To obtain low oxygen ductile hafnium, the feed must be an oxygen-free halide compound such as hafnium tetrachloride or potassium hexafluorohafnate [16871-86-6]. [Pg.442]

Three substituted 5-phenyl unsymmetrical disulfides have been prepared, i, ii, and iii —compounds i and ii by reaction of a thiol with a sulfenyl halide, compound iii from a thiol and an aiyl thiosulfonate (ArS02SAr). The disulfides are cleaved by reduction (NaBH4) or by treatment with excess thiol (HSCH2CH2OH). [Pg.303]

Because of the stabilities of halides, most elements form stable halide compounds. Thus calcium forms the compounds CaF2, CaCl2, CaBr2, and Cal2, all ionic solids. In each crystal, the calcium ion carries a +2 charge, and each of the halide ions carries a —1 charge. The empirical formulas are all of the type CaXt. [Pg.99]

Most of the reactions of the halogens are of the oxidation-reduction type. The halogens are so reactive that they do not occur uncombined in nature and they must be made from halide compounds (salts). We shall consider briefly the preparation of the elements and then explore some of the very interesting chemistry of this family. [Pg.356]

Halide compounds of Pu—See also Chloride compounds and Fluoride compounds... [Pg.462]

Aldehydes, formates, primary, and secondary alcohols, amines, ethers, alkyl halides, compounds of the type Z—CH2—Z, and a few other compounds add to double bonds in the presence of free-radical initiators/ This is formally the addition of RH to a double bond, but the R is not just any carbon but one connected to an oxygen or a nitrogen, a halogen, or to two Z groups (defined as on p. 548). The addition of aldehydes is illustrated above. Formates and formamides " add similarly ... [Pg.1034]

Fig. 8. Correlation between Pearson s hardness parameter (7P) derived from gas-phase enthalpies of formation of halide compounds of Lewis acids (19), and the hardness parameter in aqueous solution (/A), derived from formation constants of fluoride and hydroxide complexes in aqueous solution (17). The Lewis acids are segregated by charge into separate correlations for monopositive ( ), dipositive (O), and tripositive ( ) cations, with a single tetrapositive ion (Zr4+, ). The /P value for Tl3+ was not reported, but the point is included in parentheses to show the relative ionicity of Tl(III) to ligand bonds. [Pg.105]

Indium-mediated allylation of an unreactive halide with an aldehyde132 was used to synthesize an advanced intermediate in the synthesis of antillatoxin,133 a marine cyanobacteria (Lyngbya majus-cula) that is one of the most ichthyotoxic compounds isolated from a marine plant to date. In the presence of a lanthanide triflate, the indium-mediated allylation of Z-2-bromocrotyl chloride and aldehyde in saturated NH4C1 under sonication yielded the desired advanced intermediate as a 1 1 mixture of diastereomers in 70% yield. Loh et al.134 then changed the halide compound to methyl (Z)-2-(bromomethyl)-2-butenoate and coupled it with aldehyde under the same conditions to yield the desired homoallylic alcohol in 80% yield with a high 93 7 syn anti selectivity (Eq. 8.55). [Pg.242]

Hydroxycarbonylation and alkoxycarbonylation of alkenes catalyzed by metal catalyst have been studied for the synthesis of acids, esters, and related derivatives. Palladium systems in particular have been popular and their use in hydroxycarbonylation and alkoxycarbonylation reactions has been reviewed.625,626 The catalysts were mainly designed for the carbonylation of alkenes in the presence of alcohols in order to prepare carboxylic esters, but they also work well for synthesizing carboxylic acids or anhydrides.137 627 They have also been used as catalysts in many other carbonyl-based processes that are of interest to industry. The hydroxycarbonylation of butadiene, the dicarboxylation of alkenes, the carbonylation of alkenes, the carbonylation of benzyl- and aryl-halide compounds, and oxidative carbonylations have been reviewed.6 8 The Pd-catalyzed hydroxycarbonylation of alkenes has attracted considerable interest in recent years as a way of obtaining carboxylic acids. In general, in acidic media, palladium salts in the presence of mono- or bidentate phosphines afford a mixture of linear and branched acids (see Scheme 9). [Pg.188]

Aryl halide compounds such as fluorobenzene derivatives can be used to form covalent bonds with amine-containing molecules like proteins. The reactivity of aryl halides, however, is not totally specific for amines. Other nucleophiles such as thiol, imidazolyl, and phenolate groups of amino acid side chains also can react (Zahn and Meinhoffer, 1958). Conjugates formed with sulfhydryl groups are reversible by cleaving with an excess of thiol (Shaltiel, 1967). [Pg.175]

This is similar to the behavior of aluminum halides discussed earlier in this chapter, and it illustrates the fact that dehydration of a hydrated solid cannot be used as a way to prepare anhydrous halide compounds in some instances. [Pg.387]

We have already mentioned that the mixed alkyl halide compounds of aluminum dimerize, and the solubility parameters shown in Table 12.1 for these compounds are consistent with that assessment. The solubility parameters for triethylboron and diethylzinc are 15.4 and 18.2 in J cm 3/2, respectively. These values are indicative of liquids that are not strongly associated, which is known to be the case. [Pg.407]

In some cases, metallic tin reacts directly with an alkyl halide to produce mixed alkyl halide compounds. [Pg.409]

Mixed alkyl halide compounds result from the reaction of dialkylcadmium with cadmium halides. [Pg.411]

TABLE 2.1 Formation Enthalpy of Schottky Defects in Some Alkali Halide Compounds of Formula MX"... [Pg.53]

Thus far, only metal-oxide nanotubes have been synthesized by this process. Whereas crystalline nanotubes were obtained from 2D (layered) oxides, various 3D oxide compounds resulted in semicrystalline or amorphous nanotubes, only. In principle, this kind of process could be extended to the synthesis of nanotubes from chalcogenide and halide compounds in the future. [Pg.285]

This section is concerned mostly with the enzymatic hydrolysis of substrates classified as phosphoric acid mono-, di-, and triesters, phosphonates, phosphoro(di)thioates, phosphonodithioates, and P-halide compounds. [Pg.567]


See other pages where Halide compounds is mentioned: [Pg.39]    [Pg.892]    [Pg.414]    [Pg.296]    [Pg.70]    [Pg.70]    [Pg.1266]    [Pg.333]    [Pg.95]    [Pg.698]    [Pg.1027]    [Pg.507]    [Pg.457]    [Pg.465]    [Pg.614]    [Pg.235]    [Pg.477]    [Pg.477]    [Pg.34]    [Pg.35]    [Pg.552]    [Pg.567]    [Pg.579]   
See also in sourсe #XX -- [ Pg.508 , Pg.509 ]

See also in sourсe #XX -- [ Pg.1115 , Pg.1118 ]

See also in sourсe #XX -- [ Pg.508 , Pg.509 ]




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1.2- Dicarbonyl compounds from acyl halides

1.2- Dicarbonyl compounds from alkyl halides

Acid halides compounds

Active hydrogen compounds reaction with aryl halides

Active methylene compounds with acyl halides

Active methylene compounds with alkyl halides

Acyl halides and related compounds

Acyl halides compounds

Acyl halides with organocopper compounds

Acyl halides with organotin compounds

Acyl halides with organozinc compounds

Addition of hydrogen halide to unsaturated alcohols, ethers, carbonyl compounds, and nitriles

Alkenyl halides with organozinc compounds

Alkenyl halides, coupling with metals organometallic compounds from

Alkyl and Metal Halide Compounds

Alkyl halides Compounds with halogen

Alkyl halides Compounds with halogen Table

Alkyl halides Compounds with halogen ammonia

Alkyl halides Compounds with halogen elimination reaction

Alkyl halides Compounds with halogen from alcohols

Alkyl halides Compounds with halogen nucleophilic

Alkyl halides and related compounds

Alkyl halides and related compounds azoles without a free NH group

Alkyl halides carbonyl compound

Alkyl halides compounds

Alkyl halides organomercury compounds

Alkyl halides, oxonium salts and related compounds

Allyl halides with organocopper compounds

Allyl halides with organotin compounds

Allyl halides with organozinc compounds

Allylic halides compounds

Allylic halides reaction with vinyltin compounds

Antimony halides phosphorus compounds

Aromatic compounds from aryl halides

Aromatic compounds from benzylic halides

Aromatic compounds, fused halides

Aromatic compounds, with acyl halides

Aryl halides and related compounds

Aryl halides and related compounds, photochemistry

Aryl halides arylzinc compound electrochemical

Aryl halides compounds

Aryl halides organomagnesium compound

Aryl halides organometallic compound cross-coupling

Aryl halides with organocopper compounds

Aryl halides with organotin compounds

Aryl halides with organozinc compounds

Benzylic halides organosamarium compounds

Binary compounds and oxide halides

Binary compounds halides

Bismuth compounds hydrogen halides

Bismuth compounds nitrogen halides

Boron Halide-Amine Coordination Compounds

Boron halides cluster compounds

Boron halides, coordination compounds with amines

Bromide compounds halide hydrogenolysis

Carbon compounds alkyl halides

Carbonyl compounds acyl halides

Chalcogen compounds binary halides

Chalcogen compounds oxide halides

Chalcogenide halide compounds

Chalcogenide halide compounds magnetic properties

Chalcogenide halide compounds synthesis

Chemistry of Organic Fluorine Compounds perfluoroalkyl halides with

Chloride compounds halide hydrogenolysis

Cluster compounds halides

Cluster compounds lanthanide halides

Cluster compounds molybdenum halides

Cluster compounds niobium halides

Cluster compounds tantalum halides

Cluster compounds tungsten halides

Cluster compounds zirconium halides

Cobalt complex compounds corresponding halides

Compounds from halides

Compounds, colored halides

Copper Compounds halides

Copper compounds halides with terminal acetylenes

Copper, organo- compounds halides

Coupling of Activated Aliphatic Halides with Carbonyl Compounds

Coupling of alkyl halides with organometallic compounds

Cross-coupling halides with organometallic compounds

Cyclic compounds allylic halides

From Cyano-compounds and Phosphorus(v) Halides

Graphite, intercalation compounds with metal halides

Grignard compounds organomagnesium halides

Group 13 elements alkyl halide compounds

Halide Graphite Compounds

Halide compounds high temperature magnetic

Halide compounds measurements

Halide compounds thermodynamics

Halide compounds, metal

Halides from organomercury compounds

Halides mercury compounds

Halides mixed-valence compounds

Halides organocopper compounds

Halides organolithium compounds

Halides organometallic compounds

Halides oxo compounds

Halides palladium-catalyzed reaction with organolithium compounds

Halides reactions with organocerium compounds

Halides reductive cyclization of compounds containing

Halides, Oxyhalides, and Related Compounds

Halides, alkyl from aromatic compounds

Halides, alkyl from organometallic compounds

Halides, alkyl reaction with aromatic compounds

Halides, alkyl, reaction with nitro compounds

Halides, aryl from organometallic compounds

Halides, aryl reaction with active methylene compounds

Halides, aryl reaction with aromatic compounds

Halides, aryl, arylation aromatic compounds

Halides, aryl, arylation methylene compounds

Halides, aryl, with active compounds

Halides, aryl, with active methylene compounds

Halides, vinyl from organometallic compounds

Halogen compounds, organic primary halides

Heterocyclic compounds halide reactions

Heterocyclic compounds, synthesis from halides

Hydroxy compounds, with halides

Indirect reduction of halides and isotopic labelling via organomagnesium compounds

Indium compounds, aryl halide reactions with

Indole compounds alkyl halide reactions

Inorganic compounds halides

Ionic compounds halides

Ionic compounds organic halides

Lead compounds halide-coordinated products

Magnesium compounds halides

Metal cluster compounds halide clusters

Metal halides, reaction with compounds

Methyl halides compounds

Mixed halides organometallic compounds

Nickel halide compounds

Nitro compounds from alkyl halides

Nitro compounds, reaction with halides

Nitrogen halides and related compounds

Organic compounds halides

Organoaluminum compounds with halides

Organocopper compounds, reactions with acyl halides

Organocopper compounds, reactions with alkyl halides

Organocopper compounds, reactions with allyl halides

Organocopper compounds, reactions with aryl halides

Organolithium compounds coupling with halides

Organolithium compounds from alkyl halide reduction

Organolithium compounds reactions with halides

Organolithium compounds with aryl halides

Organolithium compounds with metal halides

Organomagnesium compounds coupling reactions with alkenyl halides

Organomercury compounds with acyl halides

Organometallic compound, coupling with alkyl halide

Organometallic compounds acyl halide coupling

Organometallic compounds alkyl halides

Organometallic compounds reaction with 1 -alkynyl halides

Organometallic compounds reaction with alkyl halides

Organometallic compounds with acyl halides

Organometallic compounds with alkyl halides

Organometallic compounds with aryl halides

Organometallic compounds with halides

Organometallic compounds with unsaturated halides

Organometallic compounds, 1,4-addition metals with halides

Organometallic compounds, also from alkyl halides

Organometallic compounds, also from aryl halides

Organometallic compounds, also from halides

Organopalladium compounds halides

Organopalladium compounds reaction with halides

Organosodium compounds with halides

Organotin compounds with alkenyl halides

Organotin compounds with aromatic halides

Organotin compounds with halides

Organotitanium compounds with halides

Organozinc compounds arylzinc halides

Organozinc compounds coupling reactions with alkenyl halides

Organozinc compounds from alkyl halides

Organozinc compounds halides

Organozinc compounds reactions with halides

Organozinc compounds with acid halides

Organozinc compounds with aromatic halides

Organozinc compounds, coupling with halides

Osmium compounds halide derivatives

P-Halide compounds

Penta- and Hexacoordinated Si Compounds with Heavier Halides (Br, I)

Perfluoroalkyl halides compounds

Photochemistry of aryl halides and related compounds

Potassium compounds alkyl halides

Potassium compounds allylic halides

Protactinium halides compounds

Reactions of organometallic compounds with metal halides

Reactions with Halides and Perhalogenated Compounds

Reactivity, alkyl halides with aromatic compounds

Sulfonyl halides compounds

Titanium halide compounds

Transition metal halides reactions with organolithium compounds

Unsaturated compounds alcohol reactions with halides

Vinyl halides with organocopper compounds

Vinyl halides with organotin compounds

Vinylic halides compounds

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