ChemicalBook CAS DataBase List Cyclopentane-1,2-dicarboximude

Cyclopentane-1,2-dicarboximude synthesis

6synthesis methods

Product Name:Cyclopentane-1,2-dicarboximude
CAS Number:5763-44-0
Molecular formula:C7H9NO2
Molecular Weight:139.15

90474-13-8 Synthesis

90474-13-8
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5763-44-0
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Yield:5763-44-0 96%

Reaction Conditions:

with ammonia at 130 - 280; for 5 h;Product distribution / selectivity;autoclave;Pyrolysis;Industry scale;

Steps:

1.A

Load 1 kg of diethyl 1,2-cyclopentanedicarboxylate and 1.02 kg of 27% ammonia into an autoclave. The reaction mixture is heated in the autoclave at a temperature of 130° C. for a minimum of 4 hours. After cooling to 60° C. and depressurisation, evaporation of the solvent is carried out. The residue is then subjected to pyrolysis at 280° C. for 1 hour. The imide is purified by distillation in vacuo (4-12 mbars) at a temperature of 200° C. After isolation, the title product is obtained in a yield of 96%.Melting point: 89° C

References:

US2012/316214,2012,A1 Location in patent:Page/Page column 4

50483-99-3 Synthesis