Mesityl iodide

The arylation of cyclic and acyclic alkenes at the allylic position with Grignard reagents was accomplished by Nakamura by using an irrai/xantphos catalyst and mesityl iodide as an oxidant (Eqs. 36 and 37) [88]. The alkene was used in large excess, and the TON of the reaction reached 240. Control experiments supported the intermediacy of a a -aUyliron rather than a Heck-type mechanism. 

Mercuri-mesityl iodide Mercuri-2 4 6-trimethylphenyl iodide)... 

Although bulky aryl groups, e.g., mesityl, are not effective in stabilizing arylselenium (II) azides, the use of intramolecular coordination in 2-Mc2NCH2C6H4SeN3 has enabled the first structural characterization of this reactive functionality. The Se-Ns (azide) bond length is 2.11 A, while the intramolecular Se N distance is 2.20 A, cf. 2.14 A in the arylselenium bromide 15.5, and 2.13 A and 2.17 A, respectively, in the corresponding chloride and iodide. This... 

Indenopyrene, see Indeno[l,2,3-crf pyrene l//-Indole, see Indole Indolene, see Indoline Inexit, see Lindane Inhibisol, see 1,1,1-Trichloroethane Insecticide 497, see Dieldrin Insecticide 4049, see Malathion Insectophene, see a-Endosulfan, p-Endosulfan Intox 8, see Chlordane Inverton 245, see 2,4,5-T lodomethane, see Methyl iodide IP, see Indeno[l,2,3-crf pyrene IP3, see Isoamyl alcohol Ipaner, see 2,4-D IPE, see Isopropyl ether IPH, see Phenol Ipersan, see Trifluralin Iphanon, see Camphor Isceon 11, see Trichlorofluoromethane Isceon 122, see Dichlorodifluoromethane Iscobrome, see Methyl bromide Iscobrome D, see Ethylene dibromide Isoacetophorone, see Isophorone a-Isoamylene, see 3-Methyl-l-butene Isoamyl ethanoate, see Isoamyl acetate Isoamylhydride, see 2-Methylbutane Isoamylol, see Isoamyl alcohol Isobac, see 2,4-Dichlorophenol Isobenzofuran-l,3-dione, see Phthalic anhydride 1,3-Isobenzofurandione, see Phthalic anhydride IsoBuAc, see Isobutyl acetate IsoBuBz, see Isobutylbenzene Isobutane, see 2-Methylpropane Isobutanol, see Isobutyl alcohol Isobutene, see 2-Methylpropene Isobutenyl methyl ketone, see Mesityl oxide Isobutyl carbinol, see Isoamyl alcohol Isobutylene, see 2-Methylpropene Isobutylethylene, see 4-Methyl-l-pentene Isobutyl ketone, see Diisobutyl ketone Isobutyl methyl ketone, see 4-Methyl-2-pentanone Isobutyltrimethylmethane, see 2,2,4-Trimethylpentane Isocumene, see Propylbenzene Isocyanatomethane, see Methyl isocyanate Isocyanic acid, methyl ester, see Methyl isocyanate Isocyanic acid, methylphenylene ester, see 2,4-Toluene-diisocyanate... 

The electrochemical analysis allowed the determination of kinetic constants for this reaction46. Thus, in the presence of bromobenzene, the rate constant for the oxidative addition was found to be equal to about 70 M 1 s 1. The a-arylnickel complexes are unstable, except those obtained from o-tolyl or mesityl bromide as starting substrates. In these particular cases, the arylnickel complexes can be prepared by electrolysis from an ArBr/NiBr2(bpy) equimolar ratio. However, the exhaustive electrolysis of an aromatic iodide in the presence of ZnBr2, in DMF and at —1.4 V/SCE, leads to the corresponding arylzinc compound but the yield remains low (<20%). Indeed, the aryl iodide is mainly converted to ArH according to, very likely, a radical process (Scheme 11). 

Compound Name Mercuric Chloride Mercuric Iodide Mercuric Chloride Mercuric Ammonium Chloride Mercuric Cyanide Mercuric Cyanide Mercuric Chloride Mercuric Nitrate Mercuric Oxide Mercuric Chloride Mercuric Nitrate Mercurous Chloride Mercurous Nitrate Mercurous Chloride Mesityl Oxide Calcium Resinate Methyl Methacrylate N-Butyl Methacrylate Glycidyl Methacrylate Ethyl Methacrylate Methyl Methacrylate Methallyl Chloride Methallyl Chloride Formaldehyde Solution Methane... 

Fit a 1-litre three-necked flask with two double surface condensers and a sealed stirrer unit. Place 25 g (29 ml, 0.25 mol) of mesityl oxide (Expt 5.213), 50 ml of dioxane and a cold (10 °C) solution of sodium hypochlorite in 750 ml of water (1) in the flask, and stir the mixture. Heat is evolved in the reaction and after about 5 minutes chloroform commences to reflux. As soon as the reaction becomes very vigorous, stop the stirrer and cool the flask with water so that the chloroform refluxes gently after 20-30 minutes, when the reaction has subsided, resume the stirring and continue it until the temperature of the mixture has fallen to that of the laboratory (2-3 hours). Decompose the slight excess of hypochlorite by the addition of sodium metabisulphite (about 1 g), i.e. until a test-portion no longer liberates iodine from potassium iodide solution. 

Tetramethyl-3-piperideine (35) may be prepared from mesityl oxide via diacetoneamine (4-amino-4-methyl-2-pentanone) and reaction with acetaldehyde to give 2,2,6-trimethyl-4-piperidone, which is then treated with methylmagnesium iodide and dehydrated.28... 

Extraction of the cadmium-iodide complex from iodide-H2S04 solutions with oxygen-containing solvents (e.g., mesityl oxide, 2-ethyl-1-butanol) is a selective recommended separation method (e.g., from zinc) [1-3]. The iodide complex of cadmium can also be extracted with high molecular weight amines in xylene [4], TBP in benzene [5], and with tetra-n-butylammonium iodide in CHCI3 [6]. 

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