Aluminates organo

Natrium-alkyl-hydrido-aluminate (hauptsachlich aus Natriumhydrid und Organo-aluminium-Vcrbindungen hergestellt1( )reduzieren Carbonsaureester (s.S. 193) und aromatische Nitrile selektiv zu Aldehyden. Zu Na-trium-diathyl-dihydrido-aluminat als Reduktionsmittel s.Lit.11. 

In 1954, Lehmkuhl in his dissertation discussed two alternative mechanisms for the cathodic deposition and anodic dissolution of aluminum from the new organo-aluminum electrolytes [118]. One possibility is the preliminary deposition of alkali metals as a result of electrolytic dissociation of the 1 2 complex, resulting in alkali metal cations, and subsequent chemical reaction of this alkali metal with free or coordinated aluminum trialkyl, yielding aluminum metal and alkali metal tetraalkyl aluminate (see Scheme 2). 

Conjugate addition. TBS-OTf promotes the conjugate addition of organo-aluminates to enones. 

The potential of ILs in liquid-liquid biphasic catalysis for the generation of clean technology has became a reality with the announcement of a commercial process for the dimerization of butenes to isooctenes (Difasol process) by IFF (France) based on nickel complexes immobilized in organo-aluminate imidazolium ILs [138]. 

The knowledge of the angle 20 helps to define the size of the pack of the aluminous silicate consisting of the clay layer and interlayer space. The size of such pack increases in a row from initial silicate to polymeric nanocomposite according to the increase in the interlayer space. The average size of that pack for montmorillonite is 1.2-1.5 nanometers but for organo-modified one varies in the range of 1.8-3.5 nanometers. 

Zirco-alnminates have been available for several years, bnt do not seem to have made mnch headway in the particnlate fillers area. Again stmctnral details and useful scientific data is scarce. They are said to be based on a low molecular weight zirco-aluminate backbone carrying two ligand types. One type confers hydrolytic stability to the backbone, while the other contribntes organo-functionality. A nnmber of functionalities are possible inclnding methacryloxy, mercapto, and amino. 

A controlled method of introducing reinforcement into mbbers is by precipitating chemically generated fillers into network stmctures rather than blending badly agglomerated filler particles into elastomers prior to their aoss-linking. This has been done for several systems, that is, silica by hydrolysis of organo-silicates, titania from titanates, alumina from aluminates, and so on. "" A typical, and important, reaction is the acid- or base-catalyzed hydrolysis of tetraethylorthosilicate ... 

Alanes (s. a. Aluminum compds., organo-, Hydro-alumination)... 

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