1: chlorodi-tert-butylphosphine With lithium in tetrahydrofuran T=0 - 20°C; 72 h; 2: Cl(CH2)2N(TMS)2 in tetrahydrofuran T=0°C; 4 h; Heating / reflux; 3: With sodium hydroxide; sulfuric acid; water more than 3 stages;

in tetrahydrofuran a mixt. of complex and aminophosphine was refluxed in THF under Ar for 6h, the mixt. was cooled to room temp.; the mixt. of isomers;