 
 <prompt> Wetin be di definition of di study? Based on di question wey dey above, write one context wey go contain 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 alkyl halide R'X, zinc and hydrochloric acid to form α-hydroxycarboxylic esters RR'COHCOOR, di Reformatskii reaction wey dey convert α-halo-esters and aldehydes to β-hydroxy-esters, di Simmons–Smith reaction wey involve carbenoid (iodomethyl)zinc iodide wey react with alkene(or alkyne) and convert dem to cyclopropane, di Addition reaction of organozinc compounds to carbonyl compounds. Di Barbier reaction (1899) na di zinc equivalent of di magnesium Grignard reaction and e better pass di two. In presence of just about any water di formation of di organomagnesium halide go fail, whereas di 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 di active organozinc compound dey obtained from much cheaper organobromine precursors:``` 