Dehalogenation, reductive

A comparison of the polarographic reduction of 2- and 3-substituted thiophenes have shown that the 2-isomers are more easily reduced than the 3-isomers. Polarography has also been used for the quantitative study of the dehalogenative reduction of 2-halo-5-carbonyl thiophenes and for the study of the hydroxychalcone-chromanone equilibrium in thienylsubstituted compounds. ... 

Dehalogenating reduction Salt elimination Disproportionation Electrochemical formation Dehydrogenative catalytic coupling... 

Reduction reactions mediated by microorganisms may include the reduction of nitro bonds, sulfoxide reduction, and reductive dehalogenation. Reduction of the nitro group to amine involves the intermediate formation of nitrase and hydroxy amino groups. Selected reductive reactions may involve the saturation of double bonds, reduction of aldehydes to alcohols or ketones to secondary alcohols, or of certain metals. The main reductive processes in the subsurface environment have been discussed earlier in this chapter. 

USE In synthesis of inorganic potassium compds in organic syntheses involving condensation, dehalogenation, reduction, and polymerization reactions. As haat transfer medium together with sodium Chem. [Pg.1211]

A HOC containing sp -hybridized carbon-halogenated bonds can undergo reaction by several routes nucleophilic substitution, dehydrohalogenation (loss of HX X = halogen), and reductive dehalogenation. Reductive dehalogenation... 

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