Azetidine
Trimethyleneimine
Colorless liquid
Liquid
0.85 g · cm -3
-83 ° C
61-62 ° C
176 hPa ( 19 ° C)
Soluble in water
1.4287 (25 ° C)
Risk
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Azetidine, also called trimethyleneimine is the simplest nitrogen-containing saturated four-membered heterocycle. It forms the basic structure of the group of azetidines.
Representation
Azetidin can be obtained from the thermal conversion of 1,3-diaminopropane with hydrochloric acid.
Properties
Azetidine is a colorless liquid with a boiling point of 61-62 ° C. It is a heterocyclic nitrogen base.
Reactions
The azetidine ring can be opened by nucleophiles. This makes possible the synthesis of terminal amines.
For example, ethylenediamine reacts with the palladium catalyst azetidine ring opening to a triamine.