Reaktion #366916

Reaktionsgleichung

2-phenoxyphenylsulfonamide

n-hexyl isocyanate

1,4-diazabicyclo-[2,2,2]-octane

trichloromethyl chloroformate

→

2-phenoxyphenylsulfonylisocyanate

Ausbeute 82.6%

Lösungsmittel

xylene

xylene

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeAt the end of the reaction
2. 2
   workup.DISTILLATIONthe xylene and n-hexyl isocyanate were distilled off

Vorschrift

25.0 g of 2-phenoxyphenylsulfonamide, 14.0 g of n-hexyl isocyanate, a catalytic amount of 1,4-diazabicyclo-[2,2,2]-octane and 150 ml xylene were refluxed with stirring for an hour. Thereafter, the mixture was reacted with a solution of 11.9 g of trichloromethyl chloroformate in 30 ml of xylene in a manner similar to that of Example (1). At the end of the reaction, the xylene and n-hexyl isocyanate were distilled off, to obtain 22.8 g of 2-phenoxyphenylsulfonylisocyanate. B.p. 146°-150° C./0.7 mmHg.

Quelle