 
 <prompt> Wetin be di reaction wey involve water? Based on di question wey dey before dis one, 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 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. If water dey around, the formation of organomagnesium halide go fail, but the Barbier reaction fit happen even inside water. But the downside be say organozincs no too dey nucleophilic like Grignards, dem dey expensive and hard to handle. Di ones wey dey commercially available na dimethylzinc, diethylzinc and diphenylzinc. For one study, the active organozinc compound dey obtained from much cheaper organobromine precursors:``` 