Pyrrolidine

• Azolidine
• Tetramethylenimin
• Tetrahydropyrrole
• Azacyclopentane

Liquid

0.866 g · cm -3

-63 ° C

87 ° C

Miscible with water and organic solvents such as methanol, ethanol, acetone

Risk

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Pyrrolidine ( IUPAC azolidine ) is an annular, aliphatic secondary amine having five ring members. It is a heterocycle.

Production and representation

Technically possible to produce ammonia by the reaction of pyrrolidine or tetrahydrofuran butanediol.

Properties

Pyrrolidine is a colorless, flammable liquid with an unpleasant odor and ammonia. The vapor pressure function is given by Antoine corresponding log10 (P) = A- ( B / ( T C)) (P in kPa, T in K ) with A = 6.2, B = 1242 and C = -61 in the temperature range of 296-353 K. In aqueous solution, it reacts much basic. The compound forms flammable vapor - air mixtures. The flash point is 3 ° C. The explosion range is between 1.6 vol% (47 g/m3) as the lower explosive limit ( LEL) and 10.6 % by volume (314 g/m3 ) and upper explosive limit (UEL ) .. The ignition temperature is 320 ° C. The fabric falls within the temperature class T2.

Occurrence

In nature pyrrolidine occurs in some plants found in small amounts. Therefore, traditional herbal uses should be critically examined. The basic structure, it is found in some Pyrrolidinalkaloiden and in the amino acid proline.