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Diethylaluminum iodide

Other effects of the ionicity of the catalyst on its activity has been studied by Natta, PaSQUON, Zambelli and Gatti (66). The polymerization of propylene was carried out with alpha titanium trichloride and diethylberylium or triethylaluminum. They found that catalysts from the alkylberylium were more stereospecific than those from alkyl aluminum. On the other hand their study of titanium trichloride with diethylaluminum iodide, diethylaluminum bromide, diethylaluminum chloride or triethylaluminum showed that the greater stereospecificity was produced by the iodide containing catalyst. The less electrophilic catalyst produced greater crystallinity than the corresponding bromide or chloride component. [Pg.370]

More than 20 aluminum alkyls are presently offered in the merchant market. As of this writing, most of the high-volume products are priced between about 5 and 10 per pound. Exceptions include trimethylaluminum (which is produced by a costly multi-step process (13)) and diethylaluminum iodide (which requires expensive iodine). Triethylaluminum (TEAL) is the most important aluminum alkyl and is sold globally in multi-million pound per year quantities. Large amounts of triethylaluminum are used in production of polypropylene. Chlorinated aluminum alkyls, such as diethylaluminum chloride (DEAC) and ethylaluminum sesquichloride (EASC), are less costly than triethylaluminum. However, DEAC and EASC do not perform well with some modern supported... [Pg.47]

Chlorine adds to /V-trichlorovinylbenzaldehydeimine to give the yV-benzylideneamide chloride (224) which is in equilibrium with the imidoyl chloride (225 equation 122). The action of trimethylsilyl iodide or diethylaluminum iodide on 0-acylketoximes affords imidoyl iodides (226 equation 123) with excellent yields. ... [Pg.528]

Although imidoyl iodides are chemically labile, their in situ generation from oxime derivatives with trimethylsilyl iodide or diethylaluminum iodide has been ascertained spectroscopically (equation 14). The synthetic utility of these reactive species has been demonstrated by further reacting them with external nucleophiles such as thiolates or Grignard reagents. For example, the imidoyl iodide (28), generated from acetophenone oxime carbonate with trimethylsilyl iodide, is further transformed to ethylthioimidate (29) and a-alkylated amine (30), respectively (Scheme 1 and equation 15). [Pg.767]

Hoberg found that diethylaluminum iodide (1) reuct.s with diazomethane in pentane at —80° with evolution of nitrogen and formation of crystalline iodomethyl-aluminumdiethyl (2). This substance is stable in the temperature range —80 to —50° but at —10 to 0° it decomposes with formation of ethylene. Formation of... [Pg.856]

Cyclopropanes Diborane. Diethylaluminum iodide. Diethyl cyanomethylphosphonate. Dlphenyldiazomethane. Lithium ahitninum hydride. Simmona-Smith reaction. Sodium hydride. Triethylphoiphoenol pyruvate. [Pg.1392]

A useful reagent results from the reaction of diethylaluminum iodide with... [Pg.243]

The reaction of a,p-alkynic ketones with diethylaluminum iodide gives allenolates by 1,4-addition (Scheme 35).125 These intermediates can react with aldehydes to give aidoi-type products. [Pg.116]

Aluminum dichlorohydrex polyethylene glycol complex. See Aluminum dichlorohydrex PEG Aluminum, dichloro (2-methylpropyl)-. See Isobutylaluminum dichloride Aluminum, diethyliodo-. See Diethylaluminum iodide... [Pg.185]

Uses Catalyst for Ziegler-Natta polymerization of olefins and dienes reactant in prod, of transition metal catalysts alkylating agent for prod, of organotin compds. and organophosphorus derivs. organic synthesis Manuf/Disthb. Acros Org. http //www.acros.be] Akzo Nobel http //www.akzonobei.com] Aldrich http //www.sigma-aidrich. com Diethylaluminum iodide CAS 2040-00-8 EINECS/ELINCS 218-032-0 UN 2845... [Pg.1296]

Diethyl hydroxysuccinate. See Diethyl malate Diethyliodoaluminum. See Diethylaluminum iodide... [Pg.1318]

Diethylaluminum chloride Diethylaluminum iodide Diisobutylaluminum chloride Ethylaluminum dichloride Isobutylaluminum dichloride... [Pg.4809]

Methylaluminum sesquichloride Tri-n-butyl aluminum Triethylaluminum catalyst component, Ziegler-Natta type systems olefin polymerizations Diethylaluminum chloride Diethylaluminum iodide Diisobutylaluminum chloride Isobutylaluminum dichloride Methylaluminoxane... [Pg.4938]

Diethylaluminum iodide 218-039-9 Lauryl myristate 218-077-6 Amyl benzoate 218-078-1 Isoamyl isobutyrate 218-080-2 Amyl salicylate 218-081-8 Isoamyl valerate 218-092-8 Dibutyl oxalate 218-129-8 Allyl butyrate 218-131-9 Solvent orange 1 218-141-3 2-Bromobiphenyl 218-142-9 Butyl salicylate 218-143-4 Butyl levulinate 218-147-6... [Pg.6827]

Related Reagents. Aluminum Chloride Boron Trifluoride Etherate Diethylaluminum Chloride Diethylaluminum Iodide Dimethylaluminum Chloride Dimethylaluminum Iodide Ethyl-aluminum Dichloride Methylaluminum Dichloride Tin(IV) Chloride Titanium(IV) Chloride Triethylaluminum Trimethyl-aluminum. [Pg.181]

See other pages where Diethylaluminum iodide is mentioned: [Pg.265]    [Pg.179]    [Pg.118]    [Pg.2069]    [Pg.856]    [Pg.41]    [Pg.1161]    [Pg.4938]    [Pg.6196]    [Pg.7033]    [Pg.329]   
See also in sourсe #XX -- [ Pg.164 ]

See also in sourсe #XX -- [ Pg.164 ]

See also in sourсe #XX -- [ Pg.245 ]

See also in sourсe #XX -- [ Pg.181 ]



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Diethylaluminum

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