Diethyl Ether → 1-Isocyanatoheptadecane

Participants

Reaction Steps

In 50 ml of toluene is dissolved 5.68 g of stearic acid, followed by addition of 5.5 g of diphenyl phosphororazidate ##STR19## hereinafter DPPA] and 3.0 ml of triethylamine. The mixture is stirred at room temperature for 2 hours. The reaction mixture is cooled, 100 ml of ether is added and the ether layer is washed with ice-water. The organic layer is taken, dehydrated with a dehydrating agent and refluxed for 2 hours, whereby 5.3 g of the above-indicated compound is obtained as colorless oil.

Provenance & Evidence