Reaktion #54849

Reaktionsgleichung

phenyl isocyanate

2-aminopyridine dibutyl tin dilaurate

→

N-(2-pyridyl)-N'-phenyl urea

Lösungsmittel

toluene

—

Petroleum ether

Reaktionsbedingungen

Aufarbeitung

1. 1
   Filtrationfiltered

Vorschrift

29.04 g of a catalyst mixture of 2-aminopyridine/dibutyl tin dilaurate (molar ratio 1:1) in 37 ml of toluene are reacted with 4.76 g of phenyl isocyanate at room temperature. Petroleum ether is added to the resulting suspension after 11/2 hours and the colorless precipitate is suction filtered. 7 g of N-(2-pyridyl)-N'-phenyl urea, m.p. 186°-188° C. are isolated.

Quelle