反应详情

One molar equivalent of diethoxyphosphoryl chloride of formula (II) is reacted with 1.0 to 1.2 molar equivalent of sodium-, potassium- or ammonium thiocyanate at a temperature range of 5° C to 30° C and, preferably, 15° C to 25° C for a period of time ranging from 2 to 4 hours to yield diethoxyphosphinyl isothiocyanate of formula (III). The reaction is slightly exothermic, but is easily controlled by a cooling bath.