Miscellaneous Organometallic Compounds

This class of rather miscellaneous organometallic compounds, all with carbon-metal bonding, contains the separately treated groups ... 

Chemical shifts have been reported for [Me3CCH2HgX] 203) (see Table XII), tr-allylic derivatives (see Table XIII), o-cyclopentadienyl derivatives (see Table XIV), and miscellaneous compounds (see Table XV). In the case of fluxional a-cyclopentadienyl derivatives, it has been shown that chemical shifts can be used to differentiate between fluxional o-cyclopentadienyl derivatives and w-cyclopentadienyl derivatives 103). The NMR spectrum of [Sb(cyclopropyl)s] has only two carbon resonances, showing that the molecule is fluxional (56) and the NMR spectrum of the naturally occurring organometallic compound, 5 -deoxyadenosylcobalamin, has been reported (65). For a number of norbornane and allylic derivatives of palladium and platinum, a number of linear relationships have been found between chemical shifts of various carbon atoms. It was suggested that a term due to paramagnetic shielding by the metal was dominant 52b). 

Various Ionic and Covalently Bonded Organic and Inorganic Compounds Containing Metals and Nonmetals, Miscellaneous Ions, and Organometallic Compounds Found in Tobacco, Tobacco Smoke, and Tobacco Substitute Smoke... 

Electrophilic Opening 20 Nucleophilic Opening 22 Cyclisation Reactions 26 Reduction and Elimination Reactions 28 Photochemical Reactions 30 Reactions with Organometallic Compounds 30 Miscellaneous Reactions 34... 

Before reviewing the other physical data on organometallic nitrosyls we now summarize the purely chemical information on the compounds. For convenience the material has been divided into three main categories (a) nitrosyl carbonyls and nitrosyl isocyanides (b) nitrosyl cyano species and (c) cyclopentadienyl and miscellaneous organometallic nitrosyls. 

Miscellaneous reactions of thiocyanogen have been reported, but their study has been too limited for a proper evaluation of their usefulness. Thiocyanogen has been shown to react with a variety of organometallic compounds and to replace the hydrogen on sulfur in mercaptans and thiophenols and the hydrogen on nitrogen of aliphatic amines and di-substituted hydroxylamines. These reactions doubtless are capable of further development. 

There has been no recent comprehensive review of this area, although a book on the organometallic chemistry of titanium, zirconium, and hafnium deals, in part, with some of the hydride derivatives (1). In the present review, the first part of the discussion reflects the fact that much of the early work on organotitanium hydrides was, often unknowingly at the time, interwoven with attempts to prepare titanocene, Cp2Ti (Cp = tj3-C5H5). Subsequent sections deal with similar compounds containing an additional metal (e.g., aluminum), miscellaneous titanium hydride compounds, and a summary of the main properties of the above species. 

From To - Alkanes Cycloalkanes Alkenes Alkynes Aryls Halogen compounds Alcohols Phenols Ethers, Quinones B. and Si compounds P and 6i compounds Nitro, Nitroso, Azo, Azoxy, Hydrazo, ides Amines Organometallic Aldehydes Ketones Acids, Anhydrides, Esters Arn.des, Amidines, Nitriles Hydroky-aldehydes Amino Heterocycles Nucleosides Miscellaneous, including heterocycles... 

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