With other organometallic agents

Lithium diallylcuprate, 11 Lithium dibutylcuprate, 61 Lithium dimethylcuprate, 63, 258 Sakurai reaction Alkylaluminum halides, 5 Allyltrimethylsilane, 11, 305 Titanium(IV) chloride, 304 with other organometallic agents (IS, 2S) -2-Amino-3-methoxy-1 -pheny 1-1-propanol, 17... 

Lithium triethylborohydride (Super-Hydride) is a much more powerful reducing agent than lithium aluminium hydride. It is useful for the reductive dehalogenation of alkyl halides, but unlike lithium aluminium hydride does not affect aryl halides. It is available as solution in tetrahydrofuran in sealed containers under nitrogen. The solutions are flammable and moisture sensitive and should be handled with the same precautions as are taken with other organometallic reagents (see Section 4.2.47, p. 442). 

Subsequent reduction of the ketone produces either the syn or anft p-hydroxyamides with high diastereoselectivity (eqs 4 and 5). Pyrrolidine-derived a-ketoamides have also been shown to react stereospecifically with reducing agents, as well as with other organometallic reagents. ... 

Thus far the synthesis of six- and seven-coordinate halocarbonyl complexes has been restricted to oxidation by CI2, Br2 and U. This section deals with a range of other oxidizing agents such as ICl, IBr, GeC, SnCl4, and HgXj, and organometallic complexes such as /ac-[MnCl (CO)3(S2CPCy3)]. 

Organometallic compounds of less active metals and metalloids (e.g., silicon," antimony, and bismuth, are quite inert to water. Organomercury compounds (RHgX or R2Hg) can be reduced to RH by H2, NaBITj, or other reducing agents." The reduction with NaBH4 takes place by a free-radical mechanism." Alkyl-Si... 

Warzelhan and Burger proposed to remove the cocatalyst before the introduction of C02 to avoid the possible influence of the cocatalyst on polymer radioactivity. However, two conditions have to be fulfilled to obtain correct data on Cp i) the life-time of an active metal-polymer bond has to be sufficiently long ii) the polymer must not contain Al—C bonds able to interact with a quenching agent. The possibility to use CO and CO2 for the quantitative determination of Cp was illustrated in the case of one-component catalysts (titanium dichloride supported organometallic catalysts when Cp values were independently determined by the use of other inhibitors including radioactive alcohol. 

The availability of the aluminum alkyls in pure state makes their use as alkylating agents for the synthesis of other organometallic compounds quite feasible. One of the general approaches is the interaction of the metal or metalloid halide with the trialkylaluminum (105) ... 

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