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Indium trialkyls

Indium reacts with Grignard reagent, forming indium trialkyls which are highly flammable and less stable than the corresponding aluminum trialkyls ... [Pg.392]

A number of indium trialkyls have been prepared, starting from the trimeihyl, and some diaryl compounds are known, such as the diphenyl bromide. The lower trialkyls are tetramers. Like aluminum, indium forms a polymeric hydride. (lnHil , from which lelrahydroindates. such as the lithium compound, LilnHj. can be derived. [Pg.826]

Oxidative addition at electron-rich transition metal centers has been exploited as an alternative route to transition metal complexes of Group 13 ligands. Sources of the highly reactive 14-electron species [Pt(dcype)] react with gallium and indium trialkyls MR3 (M = Ga, In R = CH2 Bu, CH2SiMej) via oxidative addition of a M-C bond to give species of the form (dcype)Pt(R)(MR2) (43-46, Scheme 13.4) [219]. [Pg.466]

SO3 Insertion studies of polarized bonds include indium trialkyls and... [Pg.70]

Reactions with the trialkyls of aluminium, gallium and indium are proceeding without eomplications as well 39) ... [Pg.66]

The trialkyls also may be obtained by reaction of mercury dialkyls with indium ... [Pg.392]

Indium-mediated allylation of trialkyl(difluoroacetyl)silane 70 in aqueous media gives homoallylic alcohol 71 exclusively (Scheme 60). Both water and THF are essential for the allylation reaction. It is worth noting that homoallylic alcohol 71 is formed exclusively under these reaction conditions. On the contrary, enol silyl ether 72 is a major product of the fluorinated acylsilanes reaction with other organometallic compounds than indium via a Brook rearrangement and defluorination. Indium-mediated allylsilylation of carbonyl compounds provides a facile route to 2-(hydroxyethyl)allylsilanes. The allene homologs are similarly prepared (Scheme 61).244,244a... [Pg.686]

Scheme 10 Pd-catalyzed oxidative carbonylation of trialkyl indiums. Scheme 10 Pd-catalyzed oxidative carbonylation of trialkyl indiums.
Organoindium anionic compounds in which indium coordinates to both aUcyl and hydride ligands have been synthesized via the reaction of Rsin with KH (equation 32) the product, however, combines with unreacted trialkyl to give K[ (t-BuCH2)3ln 2H] (equation 33). " Complexes in which indium coordinates to both alkyl and halide ligands can be prepared by the reaction of Rsin with [NR JX (X = F, Cl,... [Pg.1736]

Indium halides behave similarly to gallium halides in their reaction with trialkyl alanes (65). [Pg.306]

Studies on the properties of trialkyl indium derivatives and their designated use in MOCVD have also been reported, and for the first time a detailed study on the vibrational spectrum for InMe3 has been reported. ... [Pg.1695]

For over 70years, one of the most convenient methods used for the preparation of triaryl and trialkyl indium compounds has been the direct reaction of indium metal with diorganomercury compounds [5,6]. The method is, however, quite time consuming due to the general unreactive nature of indium metal. In some instances, reaction times of a week or more are required to obtain modest yields [5,7]. Of greater concern, the reaction generates mercury. We reported a new procedure for the rapid preparation of triaryl and trialkyl indium compounds in essentially quantitative yields [9]. [Pg.242]

The presence of the alkali metal salts causes no problem in isolating the final product. Eisch has reported that the addition of KCl in the reaction of InCls and EtsAl will increase the yield of Etsin [8]. The KCl forms complexes with Et2lnCl and excess EtsAl but not with Etsin, allowing for a much more convenient separation of the desired trialkyl indium compounds. We also have found that under our reaction conditions, the alkali metal salts do not form complexes with the organoindium compounds. As the alkali metal salts are very insoluble in xylene while the desired triorganoindium compounds are soluble, they can be separated from each other by simple filtration of the reaction mixture. [Pg.243]

Keywords Nitro-compounds, carbonyl compounds, dialkyl or trialkyl phosphites. Indium (In) metal, hydrochloric acid, water, room temperature, reductimi of nitro-group, imines, hydro-phosphorylation, a-aminophosphonates... [Pg.282]

No monomeric alkali metal alkyls or aryls are known, as those crystal structures which have been determined indicate electron-deficient, e.g. (MeLi), or ionic (K Me ) constitutions. The dialkyls of the lighter second group metals are mostly electron-deficient dimers or polymers, but those of zinc, cadmium and mercury are monomers with a linear structure as expected from participation of one (metal) s and one p orbital (with or without dji participation). In the third group the pattern is more complex. Whereas the trialkylboranes are monomeric, boron hydrides (and alkyl hydrides) and polyboron compounds form electron-deficient structures. Aluminium alkyls and alkyl hydrides are normally electron-deficient dimers or trimers gallium trialkyls are monomeric though the trivinyl is a dimer trimethylindium is a weakly associated tetramer in the solid state, otherwise all indium and thallium trialkyls appear to be monomers. [Pg.37]

Whereas aluminium alkyls react with most hydroxy compounds (imless there are steric complications) with loss of all three alkyl groups, such reactions tend to stop after one or two alkyl groups have been eliminated from gallium and indium alkyls. Thallium trialkyls are hydrolysed only as far as R2TIOH, and to R2T1 cations in add solution (these are considered later). [Pg.107]


See other pages where Indium trialkyls is mentioned: [Pg.10]    [Pg.552]    [Pg.1696]    [Pg.1695]    [Pg.464]    [Pg.100]    [Pg.90]    [Pg.10]    [Pg.552]    [Pg.1696]    [Pg.1695]    [Pg.464]    [Pg.100]    [Pg.90]    [Pg.320]    [Pg.1018]    [Pg.190]    [Pg.160]    [Pg.68]    [Pg.72]    [Pg.47]    [Pg.153]    [Pg.1696]    [Pg.938]    [Pg.29]    [Pg.514]    [Pg.152]    [Pg.1695]    [Pg.1999]    [Pg.68]    [Pg.72]    [Pg.15]    [Pg.69]    [Pg.242]    [Pg.860]   


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