Organometallic compounds agents

Dibal IS an informal name given to the organometallic compound [(CH3)2CHCH2l2AlH used as a reducing agent m certain reactions Can you figure out the systematic name from which dibal IS denved" ... 

The stereochemistry of addition of organometallic reagents to chiral carbonyl compounds parallels the behavior of the hydride reducing agents, as discussed in Section 5.3.2. Organometallic compounds were included in the early studies that established the preference for addition according to Cram s rule.118... 

Organometallic compounds or carbanions undergo a number of reactions in which the carbanion or carbanion-like moiety of the organometallic compound acts as a nucleophilic displacing agent. Examples are the formation of hydrocarbons from alkyl halides, alkyl halides from halogens, and ketones from acid chlorides or esters. The latter two reactions are closely related to the base-catalyzed condensations and are perhaps additions as well as displacement reactions. Related addition reactions are the carbonation of organometallic compounds and the addition to ketones or aldehydes. 

Lithium t-butyl A-tosyloxycarbamate, Bu C CNTos Li+, is an electrophilic aminating agent for organometallic compounds RM (MeLi, BuLi, j-BuLi and PhCu) to give,... 

Isoxazolo[5,4-3]pyridine 95 reacted in the dark to give different addition products 96-98 (Equation 9 Table 16), depending on the number of equivalents of organometallic compound and on the reaction temperature <2002TL9527>. The same authors found that sodium malonate, thermally unreactive toward the isoxazolo[5,4-/ ]-pyridine 95, can be used as a photochemical trapping agent <2002TL9527>. 

In the most general sense, any anion radical produced by reduction with a metal, or by electrolytic reduction in the presence of a metallic counterion could be considered an organometallic anion radical. Any review based on such a definition would be monumental. To achieve a manageable volume of material, with a content suitable to the context of this series, we have limited this chapter to anion radicals produced from organometallic compounds. Anion radicals for which the metal is present solely as the reducing agent or counterion have, for the most part, been excluded. 

Of the organometallic compounds, there are many which exhibit antiknock value however, lack of one or more of the essential qualities of solubility, volatility, stability, and low cost has so far ruled out all but two—the lead alkyls and iron carbonyl. The latter is probably the cheapest known source of antiknock increase. It was marketed for a time in Germany and to a limited extent in this country, until it became generally recognized that the great increase in engine wear which its abrasive combustion products produce makes its use impractical. Only limited success has attended the tremendous amount of effort to reduce this wear, and there appear to be no prospects of the commercial use of iron carbonyl as an antiknock agent. 

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