Iodine dimethyl sulfoxide

Iodine, 72, 293-295, 333, 452,579 Iodine-Dimethyl sulfoxide, 295 Iodine-Potassium iodate, 296 Iodine-Pyridine N-oxide, 296 lodine-Pyridine-Sulfur dioxide, 296 Iodine azide, 297 Iodine bromide, 297 lodoacetonitrile, 494 a-lodo acyl chlorides, 116 o-Iodoanisole, 130 lodobenzene, 130, 443 7r-(Iodobenzene)chromium tricarbonyl, 104 lodobenzene diacetate-Trimethylsilyl azide, 297... 

DlKETONES Iodine-Dimethyl sulfoxide. Iron carbonyl. Phenyl ben-zenethiosulfonate. Potassium ferri-cyanide. Sodium methoxide. Thionyl chloride. 

Iodine dimethyl sulfoxide Replacement of selenium and sulfur by oxygen... 

Iodine dimethyl sulfoxide-silver acetate Dilactones... 

In a similar reaction, iodine fluonde also can be removed from perfluorobutyl-, perfluorohexyl-, and perfluorooctyl iodide by using zinc-copper couple in dimethyl sulfoxide or dimethylformamide [71]... 

Halogenation of 106 with triphenylphosphine, iodine, and imidazole provided the iodo derivative 109. On treatment with lithium aluminum hydride, 109 was converted into two endocyclic alkenes, 110 and di-O-isopro-pylidenecyclohexanetetrol, in the ratio of 2 1. Oxidation of 110 with dimethyl sulfoxide - oxalyl chloride afforded the enone 111.1,4-Addition of ethyl 2-lithio-l,3-dithiane-2-carboxylate provided compound 112. Reduction of 112 with lithium aluminum hydride, and shortening of the side-chain, gave compound 113, which was converted into 114 by deprotection. ... 

Pure dimethyltriazanium chloride decomposes at 133 to 134° (the checker reports 135 to 136°). The salt is very hygroscopic and should be stored in a desiccator. It is readily soluble in water, methanol, ethanol, and dimethyl sulfoxide. An aqueous solution is stable at room temperature. Free iodine is liberated from an acidic iodide solution, and this reaction makes it possible to determine the triazanium content.3... 

Ozonolysis of alkenylpyridines gives pyridinecarbaldehydes (61JOC4912) and the latter also result from oxidation of 2- and 4-methylpyridines with iodine and dimethyl sulfoxide (70JOC841) or with selenium dioxide, although this last method also gives pyridinecarboxylic acids (69MI20600, 69MI20602). 

Iodine Pentafluoride. The controlled reaction of IF5 with dimethyl sulfoxide, Me2SO, was found to be quite violent. Although small scale tests in the cold (0°) proceeded without incident, delayed violent explosions occurred upon scale-up or upon allowing the temp to rise to 10-15°... 

Pure iodine is purple in color as are its solutions in CCLt, and CHClj. and benzene. Aqueous solutions of Kl) arc brown. Solutions of diiodine in acetone, dimethyl sulfoxide, and diethyl ether are brown. Suggest an explanation. 

Iodine-Mercury(II) oxide, 149 a-METHYLENE ALDEHYDES AND KETONES 1,4-Diazabicyclo[2.2.2]octane, 92 Dimethyl sulfoxide, 124 Formaldehyde, 136 Methoxyallene, 177 Methylene cycloalkanes By cyclization reactions Diacetatobis(triphenylphos-phine)palladium(II), 91 l-Hydroxy-3-trimethylsilylmethyl-3-butene, 147... 

In this protocol additional steps are taken to eliminate starch from the isolated cell wall material to minimize erroneous estimations of glucose in later analytical procedures. In some plant material only small numbers of very tiny starch granules may be found after staining with iodine in potassium iodide (see Basic Protocol 1) and these may be deemed too few to warrant the drastic action necessary to remove the large amounts of starch found in cells of potatoes for example. If the starch granules are small in size (e.g., <10 pm), then they are likely pass though the 11 -pm nylon mesh and be lost from the cell wall material however, to remove large amounts of starch, additional treatments with dimethyl sulfoxide (DMSO) and/or a-amylase are required. 

ARYL IODIDES Iodine-Aluminum chloride-Copper(II) chloride. Potassium iodide-Dimethyl sulfoxide. 

Also, psudo-P-D-mannopyranose (115) has been synthesized from 99 by the following reactions [28], Halogenation of 99 with triphenylphosphine, imidazole and iodine gave 1 L-4-0-benzyl-3-deoxy-3-iodo-1,2 5,6-di-0-isopropylidene-a//o-inositol (106), m.p. 77.4 °C, [oc]p° —30.1° (chloroform). Treatment of 106 with lithium aluminium hydride-resulted in a formation of two endocyclic olefins (107) and (108) in an approximately 1 2 ratio. Oxidation of 108with dimethyl sulfoxide and oxalyl chloride gave the enone (109) as a syrup, [a] 0 —68.11° (chloroform). Stereoselective... 

Acetylene. Reacts vigorously in the presence of moisture even at -60°C.3 Air. The finely divided dry powder ignites in dry air.4 Dimethyl Sulfoxide. Mixture explodes if heated above 70°C.5 Halogens. Incandesces in chlorine or fluorine at room temperature and in iodine at 100°C.3... 

As a unique reaction with the Fenton system, the alkylation of heteroaromatics with alkyl iodide, hydrogen peroxide, and dimethyl sulfoxide in the presence of FeS04 can be carried out. This reaction comprises of the initial formation of reactive HO by the reaction of FeS04 and hydrogen peroxide, reaction of HO on the sulfur atom of dimethyl sulfoxide to form CH 3 and methanesulfinic acid (SH2 reaction), reaction of CH3 on the iodine atom of alkyl iodide via SH2 pathway to form more stable R and methyl iodide, and then addition of R to the a-position of y-picoline (1) to form an addition-intermediate radical which is rearomatized under oxidative conditions to 2-alkyl-4-methylpyridine (2) [15, 16]. 

Bis[pentafluorophenyl] tellurium tetrafluoride is very reactive and fluori nates organic solvents such as diethyl ether, methanol, acetonitrile, dimethyl sulfoxide, and nitromethane4.The products obtained by the addition of iodine or iodine halides to... 

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