Grignard reagents are organometallic compounds discovered by a French chemist, Victor Grignard in 1900. These compounds can be obtained as a formula “RMgX” by the reaction of halogenated hydrocarbons with magnesium metal in anhydrous solvents such as diethyl ether,1) and have been widely used in organic synthesis.
Grignard reagents are usually used as solutions, and they are typically grayish white ~ light brown clear solutions. They generally exist in an equilibrium between alkyl magnesium halides (RMgX) and dialkyl magnesium (R2Mg), which form equilibrium mixtures with complicated compositions (called “Schlenk equilibrium”).2) Furthermore, some of these species may cause precipitation due to their lower solubility. However, there is no problem in actual use.
E 1601 (OTTO) Ethylmagnesium chloride, solution, 2.0 M In THF Cas 2386-64-3 - used: In Cp2ZrCl2 catalyzed ethylcarboxylation of alkenes using carbon dioxide to corresponding carboxylic acids. In the preparation of cyclobutylmagnesium carbenoids by reacting with 1-chlorocyclobutyl p-tolyl sulfoxides.