Metalorganic compound

Seidell, A., 1958. Solubilities of inorganic and metalorganic compounds. Ed. W.F. Linke, 4th edition, 1. Washington American Chemical Society. 

The a-selectivity is illustrated by the fact that 2-alkyl-, > 2-methoxy-, > and 2-alkyIthio-thiophenes and alkyl thenyl sul-fides ° are metalated exclusively in the 5-position. In electrophilic aromatic substitution, as previously mentioned, an appreciable amount of 3-substitution is obtained with some of these groups. After acetalization ketones can also be metalated. Thus from the diethyl ketal of 2-acetylthiophene, 2-acetyl-5-thiophenealdehyde was obtained after metalation with n-butyllithium followed by the reaction of the metalorganic compound with A,A -dimethylformamide. ... 

Besides this unique above-described process, there a numerous examples of inter- and intramolecular domino Michael/aldol processes in which the sequence is initiated by the addition of a metalorganic compound to an enone moiety. The Kamimura group [30] synthesized several five- to seven-membered thio- and hy-... 

In the areas of coordination and metalorganic compounds the CIP system was adopted in part (Sequence Rules), but a variety of special conventions mainly concerning constitution and descriptor assignment rules for stereogenic centers with more than four ligands have emerged. An excellent review is available1, and here only those types of compounds relevant to this volume are discussed. 

Metalorganic Compounds with Four Ligands at a Stereogenic Metal Center... 

Roychowdhury M. 1993. A review of safety and health hazards of metalorganic compounds. Am Ind... 

The synthesis of alkyl(aryl)chlorosilanes, based on the use of metalorganic compounds, can be carried out with the help of organomercury, organoz-inc, organosodium, organolithium, organoaluminum and organomagne-sium compounds. 

In 1863 Friedel and Crafts were the first to use metalorganic compounds to synthesise silicone monomers. Industiy focused on organomagnesium synthesis (the Grignard technique), in which alkyl- or arylhalogenide interacts with metallic magnesium to form organomagnesium compounds ... 

Tetraethoxysilane is the main raw stock in the production of valuable silicone products, e.g. heat-resistant and insulating varnishes, or oli-goethylsiloxane liquids. The most important chemical property of tetraethoxysilane is its ability to replace the ethoxyl group with an organic radical under the effect of metalorganic compounds, i.e. to form substituted ethers of orthosilicon acid, which are the raw stock in the production of the silicone products mentioned above. 

Harwood G. (1970) Industrial applications of metalorganic compounds. Khimiya Leningrad [in Russian, translated from English]... 

Alternately, use can be made of the reactivity of the active site at the chain end after the polymerization reaction (initiated by a standard metalorganic compound)... 

Carbodiimides also add to metal carbon bonds in metalorganic compounds. For example, cyclopentadienyl iron dicarbonyl 286 affords [2-f2] cycloadducts 287 with diphenyl- and... 

The most volatile metalorganic compounds or hydrides (at a temperature below 100 °C) are separated in columns packed under isocratic elution conditions. This mode does not offer good resolution, which rules out separation of forms of several metals. An excessive quantity of organic compounds introduced simultaneously into the plasma (in the GC ICP MS variant) decreases its energy, which sometimes causes the plasma to be extinguished. 

In practice, speciation analysis of metalorganic compounds is conducted using three coupled systems GC with microwave-induced plasma optical emission... 

New developments in the field of metalorganic compounds Coordination compounds of olefins with metallic salts... 

A variety of CVD methods and CVD reactors have been developed, depending on the types of precursors used, the deposition conditions applied, and the forms of energy introduced to the system to activate the chemical reactions desired for the deposition of solid fihns on snbstrates. For example, when metalorganic compounds are used as precursors, the process is generally referred to as MOCVD (metalorganic CVD), and when plasma is nsed to promote chemical reactions, this is called plasma-enhanced CVD (PECVD). There are many other modified CVD methods, such as LPCVD (low-pressure CVD), laser-enhanced or assisted CVD, and aerosol-assisted CVD (AACVD). 

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