in acetonitrile byproducts: CO; 27°C; IR;

tetrahydrofuran in tetrahydrofuran addn. of 5 mL of 1E-2 M Mn(CO)5(1-) in THF to 5 mL of 1E-2 M Mn(CO)5PEt3(1+) in THF under Ar at 22°C, react. time 300 min; not isolated; detected by IR and TLC;

1: tetrahydrofuran View Scheme

tetrahydrofuran in tetrahydrofuran byproducts: CO; in 10 mL of THF with 5E-3 M Mn(CO)5(1-) and 5E-3 M Mn(CO)5(PEt3)(1+) at 22°C under Ar, 0.10 mmol PEt3 added, react. complete within 5 min;