 
 <prompt> Wetin fit be like math rule but e no be so? Based on di last question, write one context wey get di answer. E fit be 1 - 20 sentences. Context: <response>: ```There are many important organozinc compounds. Organozinc chemistry na di science of organozinc compounds wey dey describe their physical properties, synthesis and reactions. Among important applications na di Frankland-Duppa Reaction wey involve oxalate ester(ROCOCOOR) wey dey react with an alkyl halide R'X, zinc and hydrochloric acid to form α-hydroxycarboxylic esters RR'COHCOOR, the Reformatskii reaction wey convert α-halo-esters and aldehydes to β-hydroxy-esters, the Simmons–Smith reaction wey involve carbenoid (iodomethyl)zinc iodide wey react with alkene(or alkyne) and convert dem to cyclopropane, the Addition reaction of organozinc compounds to carbonyl compounds. The Barbier reaction (1899) na di zinc equivalent of the magnesium Grignard reaction and e better pass the two. In presence of just about any water the formation of the organomagnesium halide go fail, whereas the Barbier reaction fit even happen for water. On the downside organozincs dey less nucleophilic pass Grignards, dem expensive and difficult to handle. Commercially available diorganozinc compounds na dimethylzinc, diethylzinc and diphenylzinc. For one study the active organozinc compound dey obtained from much cheaper organobromine precursors:``` 