ChemicalBook CAS DataBase List 1,3-Diaminopropane

1,3-Diaminopropane synthesis

13synthesis methods

Product Name:1,3-Diaminopropane
CAS Number:109-76-2
Molecular formula:C3H10N2
Molecular Weight:74.12

1,3-Diaminopropane is produced in a twostage continuous process, under a pressure of 10 – 20 MPa. In a first reactor, acrylonitrile reacts with excess ammonia at 70 – 100 ℃ to give 2-aminopropionitrile and bis(cyanoethyl) amine. The mixture of aminonitriles is then hydrogenated in a downstream reactor over a fixed-bed catalyst (cobalt or nickel) at 60 – 120 ℃ to give 1,3-diaminopropane and bis (aminopropyl)amine. The yield of 1,3- diaminopropane can be increased by adding a polar solvent and water or by using a large excess of ammonia.

156-87-6
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109-76-2
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Yield:109-76-2 95%

Steps:

3 Preparation of 1,3-propanediamine

EXAMPLE 3 Preparation of 1,3-propanediamine The procedure was as described in Example 2, but the reaction temperature was 195° C. and the contact time 60,000 g·s/mol, the conversion was 95%, the yield of 1,3-propanediamine 32%. 8% of 3-amino-1-propanol and 40% of other products were furthermore found.

References:

US6376713,2002,B1

504-63-2 Synthesis