JPS6034558B

An improvement in a process for preparing N,N'-bis-trimethylsilylurea by reaction of urea with hexamethyldisilazane at an elevated temperature accompanied with ammonia evolution wherein the reaction is carried out in the presence of an acid catalyst.

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Bibliographische Detailangaben
Hauptverfasser:	HANSU YOAHIMU KETSUCHU, HANSU YOAHIMU FUAARENJIIKU
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	An improvement in a process for preparing N,N'-bis-trimethylsilylurea by reaction of urea with hexamethyldisilazane at an elevated temperature accompanied with ammonia evolution wherein the reaction is carried out in the presence of an acid catalyst.