Indium bromide oxide

Indium trichloride induces rearrangement of aryl-substituted epoxides to the respective aryl-substituted acetaldehydes via an exclusive hydride shift As phenyl group migration occurs more readily than hydride migration, stilbene oxide is converted to diphenylacetaldehyde (Scheme 8.140) [184]. N-Tosyl aziridines react smoothly with carboxylic acids in the presence of a catalytic amount of indium triflate to afford the corresponding -aminoacetates and benzoates (Scheme 8.141) [185]. Indium trichloride and indium bromide catalyze regio- and diastereoselective azidolysis, bromolysis, and iodolysis of a, -epoxycarboxylates in water (Scheme 8.142) [186]. 

The other immobilization methods include carbon nanotubes and nanoparticles. PolyCglycidyl methacrylate)-grafted multiwalled carbon nanotubes (MWNT) were covalently attached to A-butyl imidazolium bromide. An indium tin oxide (ETO) electrode coated with such MWNT-IL successfully immobilized tyrosinase and showed sensing response toward phenol at the range of 0.01-0.08 mM at ambient pH and temperature [60]. Similarly, glassy carbon (GC) electrode was coated with... 

FIG. 14 Initial rates of adsorption (dF/dt)0 of cetyltrimethylammonium bromide (CTAB) onto indium tin oxide (ITO) as a function of externally applied potential, at two pH values ( , pH 5.6 o, pH 9). Concentration CTAB 0.5 mM, background electrolyte I0 M KCI. (Unpublished data of EJ.M. Bollen and J.M. Kleijn, Wag-eningen University.)... 

Indium(IH) oxide Iri203 -56 Magnesium bromide MgBrj -72... 

In 1993, we reported [19] reversible electron transfer between electrodes and the iron heme protein myoglobin imbedded in cast multi-lameUar liquid crystal films of didodecyldimethylammonium bromide (DDAB). Heretofore, reversible electron transfer from electrodes to myoglobin in solution had been accomplished only for highly purified myoglobin solutions on specially cleaned indium tin oxide electrodes [20,21]. If enhanced electron transfer for proteins in surfactant or lipid films were to prove general, it might help solve longstanding problems in protein electrochemistry. 

Another approach to metal deposition involves formation of metal ions by anodic dissolution of a microelectrode made of the same metal to be deposited (119d-119f, 124). In one example, gold patterns were fabricated in this way on indium tin oxide (124). The An UME was anodically dissolved in bromide-containing solution to form AuBr4 ions, which diffused to the negatively biased indium tin oxide substrate and were reduced to form micropattems of Au. 

Reaction with Propargyl Halides. The indium-mediated coupling of propargyl bromide with a variety of imines and imine oxides afforded homo-propargylamine derivatives in aqueous media under mild conditions.78 Propargylation of glyoxylic oxime ether in the presence of a catalytic amount of palladium(O) complex and indium(I) iodide in aqueous media was also studied (Eq.11.47).79... 

Indium Iodine Acetonitrile, nitrogen dioxide, mercury(II) bromide, sulfur Acetaldehyde, acetylene, aluminum, ammonia (aqueous or anhydrous), antimony, bromine pentafluoride, carbides, cesium oxide, chlorine, ethanol, fluorine, formamide, lithium, magnesium, phosphorus, pyridine, silver azide, sulfur trioxide... 

During the workup of the o-xylene oxidation run, a strong lachrymator made its presence felt. This was probably a-bromo-o-xylene, although it was not detected in the low voltage mass spectrum. We suspected that a strong peak at mass 104, undoubtedly caused chiefly by a fragment ion derived from o-methylbenzyl alcohol by loss of H20 (I), might also contain a contribution from benzocyclobutene from the interaction of a-bromo-o-xylene with the indium tube used to introduce samples into the spectrometer. To test this possibility, benzyl bromide and a-bromo-o-xylene were run separately under the same conditions. 

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... 

The indium-catalyzed coupling of propargyl bromide with a variety of imines and nitrile A-oxides affords the corresponding propargylated products in high yields under mild conditions (Scheme 64).261... 

Chiral allylic indium reagents and achiral aldehydes. Chiral indium reagents have been generated by the oxidative metallation of allylic bromides, which bear remote stereogenic subunits. For example, the 1,4-asymmetric induction in the indium-mediated coupling of allyl bromides 298 with benzaldehyde affords the syn-adducts as the major products (Table 10-35) [199]. The stereoselectivity of the reaction improves with more sterically encumbered allyl bromides. 

MERCURIC BROMIDE (7789-47-1) HgBfj Noncombustible solid. Light and heat cause decomposition keep out of sunlight. Violent reaction with strong oxidizers, including chlorine trifluoride. Aqueous solution is acidic. Incompatible with acetylene, ammonia, azides (may form mercury azide, a heat- and shock-sensitive explosive), bases, caustics, amines, amides, inorganic hydroxides calcium (forms amalgam) carbide, chlorine dioxide, copper and its alloys hydrazines, indium (violent at 662°F/350°C), lithiiun, potassium, rabidium, sodium. Note Be especially careful not to allow this compound to accumulate in sink traps with many of the above incompatible... 

Indium(I) bromide Brin 285 24.3 Lutetium oxide LUjO, 2490 133... 

A new indium subhalide, of composition InBri.jg, is formed as an intermediate in the oxidation of InBr by alkyl bromides. This composition corresponds to In7Brg, and it is tentatively formulated as 6In+(InBrg ). 3Br", since a Raman band at 163 cm is observed, characteristic of InBr -. 

In 2009, Reddy et al. [150] reported the use of a nano-indium oxide as a recyclable catalyst for the ligand-free thiol arylation with both aryl bromides and iodides. The specific conditions were In Oj nanoparticles (3 mol%) and KOH (2 equiv) in DMSO for 24 h at 135 ° C. The scope was clearly demonstrated affording high yields of the product. The catalyst could be recovered by ultracentrifugation and reused up to four times without much loss in activity. 

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