lithium aluminium tetrahydride in diethyl ether 2.5 h; Ambient temperature;

electroreduction;

N,N,N',N',N'',N''-hexamethylphosphoric triamide; samarium diiodide in tetrahydrofuran 4 h; various concentrations of hexamethylphosphoric triamide and DMPU; also other substrates; Product distribution;

(i) Al, HgCl2, ZnCl2, MeI, (ii) /BRN= 605308/, CuBr2; Multistep reaction;

sodium hydrogencarbonate; dibenzoyl peroxide 24 h; Heating;