TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Components: The counter electrode is selected from Mg-containing electrode and Pt-containing electrode. The electrode comprises the metal M functions as an anode in the cell. The electrochemical cell further comprises a voltage source electrically connected to the counter electrode and the working electrode; the non-aqueous electrolyte solution such that the working electrode and the counter electrode are being in contact with the electrolyte solution; and the Grignard precursor. The electrochemical cell is operable by generating a current between the working electrode and the counter electrode. The electrochemical cell is operable as a battery. The counter electrode is a cathode configured as an air cathode.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred System: The reactor further comprises a third inlet port for introducing into the reactor a Grignard substrate for undergoing the Grignard-type reaction to provide a Grignard product, where the third inlet port is positioned downstream the liquid passage; and an outlet port positioned to remove the Grignard product.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The electrochemically reacting involves electrically connecting the electrode comprising the M metal with a counter electrode, where each of the electrode comprises the M metal and the counter electrode contacts the electrolyte solution. The electrochemically reacting further involves generating an electric current between the electrodes. The generating the electric current involves generating a current density of 1-5 mA/cm2. The electrode containing the M metal functions as an anode during the electrochemically reacting. The Grignard reagent and/or an amount of the Grignard reagent obtained by the process are identifiable by an analytical method selected from a color reaction and NMR. The process (P1) further involves isolating the Grignard reagent. The preparing the Grignard reagent and performing the Grignard-type reaction are affected within the same reactor. Preferred Components: The room temperature ionic liquid comprises a cation selected from optionally substituted imidazolium, optionally substituted morpholinium, optionally substituted oxazolium, optionally substituted piperidinium, optionally substituted pyrazinium, optionally substituted pyrazolinium, optionally substituted pyrazolium, optionally substituted pyridazinium, optionally substituted pyridinium, optionally substituted pyrimidinium, optionally substituted pyrrolidinium, optionally substituted thiazolium, optionally substituted triazolium, optionally substituted 1,2,4-triazolinium, optionally substituted 1,2,3,4-tetrazolinium, phosphonium, sulfonium, uronium, guanidinium, 3-alkyl-1-methylimidazolium, 1-alkylpyridinium, N-methyl-N-alkylpyrrolidinium, 1-methyl-4-alkyl-1,2-triazolinium, 1-methyl-(2, 3 or 4)-alkyltetrazolinium and tetraalkylammonium, preferably halide, a triflate and bis(trifluoromethylsulfonyl)imide, especially (1-butyl 1-methyl pyrolidinium bis(trifluoromethyl sulfonyl)imide). The non-aqueous solution further comprises a polar non-aqueous solvent. The solvent comprises ether. The ether is selected from diethyl ether, tetrahydrofuran and an ether having a boiling point higher than 80 degrees C. Preferred Composition: The concentration of the room temperature ionic liquid is the non-aqueous solution is at least 5 vol.%. The electrolyte solution comprises the room temperature ionic liquid and a non-aqueous polar solvent at a volumetric ratio of 10:1-1:10, preferably 1:1. The concentration of the Grignard precursor in the electrolyte solution is 1-50 vol.%. The sum of a concentration of the Grignard precursor and a concentration of the room temperature ionic liquid is at least 10 vol.% of the electrolyte solution. Preferred Definitions:    M=magnesium or lithium.    EXAMPLE - No suitable example given.