L halide

Reaction with All l and Arall l Halides. Alkyl haUdes form A/-alkyl derivatives of alkanolamines. 

The separation of the sodium derivative of the phenol maybeavoided byheating the enol and all l halide in the presence of potassium carbonate and acetone, for example ... 

Another particularly convenient preparative method is the reaction of the corresponding gold(l) acetylacetonate complex with the alkyne, which requires no auxiliary base.42 68-71 This reaction is also useful for the simple acetylides (L)AuC=CH.72 The acetylacetonates can be isolated and introduced as the true reagents, or prepared in situ using the corresponding gold(l) halide complex and Tl(acac) (Equations (16) and (17)).73... 

For example, AuCl immediately decomposes into gold and gold(III) chloride, though some gold(l) halide complexes such as Aul2 are quite stable, while Au(CN)2 is formed by oxidation of gold in the presence of... 

The polarity of carbon-halogen bond of alkyl halides is responsible for their nucleophilic substitution, elimination and their reaction with metal atoms to form organometallic compounds. Nucleophilic substitution reactions are categorised into and on the basis of their kinetic properties. Chirality has a profound role in understanding the reaction mechanisms of Sj l and Sj 2 reactions. Sj 2 reactions of chiral all l halides are characterised by the inversion of configuration while Sj l reactions are characterised by racemisation. 

Tab. 10.9 Exploring the influence of the copper(l) halide salt on enantiospecificity.

Plots of the enthalpies of hydration of the pairs of ions of the Group l halides against the cation radii are shown in Figure 3.4. 

Figure 3.8 is a plot of the solubilities of the Group l halides as molalities of the compounds in their saturated solutions at 25 °C against their cation radii. The general form of the plots is roughly the inverse of that of the plots in Figure 3.7, as would be expected from equation (3.30). 

Copper(l) halides can promote the cycloaddition reaction of C02 with propargylic alcohols and aliphatic primary amines also in scC02 (333 K, 8 MPa) to give... 

The most widely used preparative method of allylindium(m) or propargylindium(lll) compounds is the oxidative addition of metallic indium or indium(l) halides to allylic or propargyl substrates.4 26 27 Allylic bromides and iodides serve as good allylic sources without any other activation. In the case of allylic chlorides, a proper additive such as lithium iodide is required to promote the oxidative addition. Allylic indium compounds prepared by oxidative addition of metallic indium are considered to exist as the sesquihalide structure (allyl jImXj), which has been... 

XLCT X— N,N charge transfer, a kind of LLCT for L= halide... 

Two different a%l halides produce three different alkanes. 

Which a%l halides should be used to obtain hexane by the Wurtz synthesis Explain. 

When all l halides with two bromine atoms on adjacent carbon atoms are reduced with Zn metal in acidic solution, alkenes are formed. 

Allies can be synthesized from metallic acetlylides and allq l halides. 

Benzene can undergo substitution reactions with halogens, HNO3, all l halides (RX), and H2SO4. 

The ate-complexes (34) also react with benzylic halides aroyl chlorides allyl halides and proj r l halides to afford the (x>rr ponding products, respectively (Eq. 75). (E)-a,P-Unsaturated carboxylic esters can also be obtains by the reaction of such borate complexes with ethyl propiolate The same type of reaction between copper(I) methyltrialkylborates and l-(l-pyrrolidinyl)-6-chloro--1-cyclohexene gives the corresponding alkylation products which are readily hydrolyzed to 2-alkylcyclohexanone... 

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