Cobalt-Salen Catalyzed Electroreductive Alkylation of Activated Olefins

Table 3

Stoichiometric study of the reaction between MVK and 2-bromooctane.

Run	Equiv. MVK	Yield^a (%)
1	1	36
2	2.5	51
3	5	57
4	25	46

Experimental conditions: anode = Fe; cathode = Ni grid (surface area = 30 cm²); current intensity I = 0.1 A; solvent = DMF + TBABr (10⁻² mol·L⁻¹) + TBAI (8.10⁻³ mol·L⁻¹); catalyst: CoCl₂ (9.4.10⁻² mol·L⁻¹) + H₂Salen (9.4.10⁻² mol·L⁻¹); methylvinylketone 1 to 25 equiv.; 2-bromooctane = 0.1875 mol·L⁻¹; T = 60°C; ^aGC yield, with ethyl undecanoate as internal standard.