triethylamine; triphenylphosphine in dichloromethane T=0 - 5°C; 6 h; Product distribution / selectivity;

1: With tributyl-amine in tetrahydrofuran; water T=15 - 30°C; pH=6.8 - 7.2; 5.33333 h; 2: With hydrogenchloride in water T=10 - 15°C; pH=~ 1.4;