Grignard reaction

Grignard reaction
the reaction of a Grignard reagent with any of the numerous types of compounds with which it can combine, as alcohols, acids, aldehydes, ketones, or esters: used chiefly in organic synthesis.
[1900-05; see V. GRIGNARD]

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Universalium. 2010.

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  • Grignard reaction — The Grignard reaction, named for the French chemist François Auguste Victor Grignard, is an organometallic chemical reaction in which alkyl or aryl magnesium halides (Grignard reagents), which act as nucleophiles, attack electrophilic carbon… …   Wikipedia

  • grignard reaction — (ˈ)grēn|yär(d) noun Usage: usually capitalized G Etymology: after Victor Grignard died 1934 French chemist : the reaction of a Grignard reagent with any of several types of compounds (as an aldehyde, ketone, or ester) to yield any of a variety of …   Useful english dictionary

  • Grignard reaction — noun The reaction of a Grignard reagent (an organo magnesium halide) with aldehydes or ketones to form secondary or tertiary alcohols …   Wiktionary

  • Grignard reaction — see under reagent …   Medical dictionary

  • Grignard — can be a French last name, or refers to an organic chemical reaction.* Victor Grignard, a French organic chemist. * The Grignard Company a chemical manufacturer. * Grignard reaction, an organic chemical reaction developed by Victor Grignard …   Wikipedia

  • Réaction de Barbier — La réaction de Barbier est une réaction organique entre un halogénure d alkyle et un groupe carbonyle comme attracteur électrophile, en présence de magnésium ou aluminium ou zinc ou indium ou étain ou leurs sels. Cette réaction produit des… …   Wikipédia en Français

  • Grignard reagent — Chem. any of the group of reagents produced by the interaction of magnesium and an organic halide, usually in the presence of an ether, and having the general formula RMgX, where R is an organic group and X is a halogen: used in the Grignard… …   Universalium

  • Grignard, Victor — ▪ French chemist in full  François Auguste Victor Grignard  born May 6, 1871, Cherbourg, France died Dec. 13, 1935, Lyon       French chemist and corecipient, with Paul Sabatier (Sabatier, Paul), of the 1912 Nobel Prize for Chemistry for his… …   Universalium

  • Grignard-Reaktion — Die Grignard Reaktion ist eine metallorganische chemische Reaktion, bei der Alkyl oder Aryl Magnesiumhalogenide (Grignard Reagenz) als Nucleophil an elektrophile Gruppen wie z. B. Carbonylgruppen reagieren. Sie dient zum Aufbau von… …   Deutsch Wikipedia

  • grignard reagent — noun Usage: usually capitalized G Etymology: after Victor Grignard : any of various compounds of magnesium with an organic radical and a halogen (as ethyl magnesium iodide C2H5MgI) that react readily (as with water, alcohols, amines, acids) in… …   Useful english dictionary

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