Chemistry of Some Organotin Compounds

Organotin compounds (OTCs) are characterized as having at minimum one covalent bond between carbon and tin atoms, and are usually denoted by the formula RnSnX4-n (n =1-3, R =aryl or alkyl, X =halogen ion or a carboxylate, etc.). There are several methods to synthesis organotin compounds, they are Grignard and Kocheshkov reactions, Wurtz reaction and alkylation method. The tin has two stable state,(II) and (IV). Sn(II) forms pyramidal sp3complexes as well as trigonal bipyramidal sp3d complexes, whereas Sn(IV) forms trigonal bipyramidal sp3d complexes or octahedral sp3d2complexes.

Structural characterization and electrochemical performance of macroporous graphite-like C3N3 prepared by the Wurtz reaction and heat treatment

g-C3N3 is synthesized by a facile method and further heat treatment can improve the initial coulombic efficiency and reversible capacity.

Facile coupling of alkyl or aryl halogenides with organolithium compounds in the presence of alkoxides of heavier alkali metals

Nonactivated alkyl or aryl halogenides readily react with organolithium compounds in the presence of alkoxides of heavy alkaline metals. In the case of organic bromides and iodides, coupling products in the sense of the Wurtz reaction are mainly formed.