1: bis-diphenylphosphine With n-butyllithium in tetrahydrofuran; hexane T=0 - 20°C; 2 h; 2: Cl(CH2)2N(TMS)2 in tetrahydrofuran; hexane T=0°C; 4 h; Heating / reflux; 3: With sodium hydroxide; sulfuric acid; water more than 3 stages;

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;

1: bis-isopropylchlorophosphine 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;

1: 1-amino-2-chloroethane hydrochloride With triethylamine in dichloromethane 2: chloro-trimethyl-silane in dichloromethane

in N,N,N',N',N'',N''-hexamethylphosphoric triamide Heating;