Cyanamidiumsalze aus Isocyaniden und N-Chloraminen
作者： Rajab Abu-El-Halawa , Johannes C. Jochims
关键词: Aryl 、 Tetra 、 Polymer chemistry 、 Chloride 、 Chemistry 、 Antimony pentachloride 、 Zinc 、 Alkyl 、 Polymerization 、 Isocyanide
摘要: Aryl- und Alkylisocyanide (6) reagieren mit N-Chlordialkylaminen (5) Antimonpentachlorid bei tiefen Temperaturen in Ausbeuten von 60–80% zu den isolierbaren Cyanamidium-hexachloro-antimonaten (2a–g). Die durch beschleunigte Polymerisation der Isocyanide last sich Komplexierung Zink- oder Quecksilber(II)-chlorid verhindern. Cyanamidiumsalze (2) Alkoholen tetrasubstituierten Uronium-hexachloro-antimonaten (15a–s), aus denen Base die Isoharnstoffe (17) freigesetzt werden konnen. Uroniumsalze (15) erhalt man auch Umsetzen Isocyaniddichloriden (18) N-Chloraminen (5), Alkoholen. Mit primaren sekundaren Aminen setzen tetra- bzw. pentasubstituierten Guanidinium-hexachloroantimonaten (16a–r) um. Cyanamidium Salts from Isocyanides and N-Chloroamines Cyanamidium hexachloroantimonates (2a–g) are isolated yield the reaction of aryl or alkyl isocyanides with N-chlorodialkylamines antimony pentachloride at low temperature. Polymerization which is catalysed by avoided through complexation zinc- mercury(II) chloride. The cyanamidium salts react alcohols to give tetrasubstituted uronium (15a–s) isoureas obtained base. Uronium also prepared isocyanide dichlorides N-chloroamines alcohols. Tetra- pentasubstituted guanidinium primary secondary amines.
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