A general synthesis of aliphatic carbamates has been worked out starting from 1 mole of cyanogen chloride and 2 moles of an aliphatic alcohol giving 1 mole of the corresponding carbamate and 1 mole of the alkyl chloride in yields ranging from 75 to 98%. The reaction is catalysed with 1 to 10 moles % of dry HC1 as catalyst and takes place at room temperature.The reaction of cyanogen chloride with l16-hexanediol yields 60% 1,6-hexamethylenedicarbamate and 1,6-dichlorohexane and 4 0 % w-chlorohexylcarbamate.
Die Alkylierung von Chlorcyan (I) mit Isopropylchlorid (II) in Gegenwart von Fe(III)‐chlorid liefert den Komplex (III), dessen Hydrolyse Isopropylamin (IV) ergibt.
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