Maleic Anhydride → HCID 86748798, compound

HRID 1197671Notes

Reaction equation

HRID 1197671 reaction equation
[CH3:1][N:2]1C(=O)CCC1=O.[C:9]1(=[O:15])[O:14][C:12](=[O:13])[CH:11]=[CH:10]1>[Co].[Re].[Mo].[Ni].CN1CCCC1=O>[C:12]1(=[O:13])[O:14][C:9](=[O:15])[CH:10]=[CH:11]1.[CH3:1][NH2:2]

Participants

6

Reactant 2

HCID 7923Maleic AnhydrideHCID 707172,5-Pyrrolidinedione, 1-methyl-

Product 1

HCID 86748798HCID 86748798, compoundYield 44%

Reagents, catalysts & solvents 3

HCID 935NickelCatalystHCID 131718302HCID 131718302, compoundCatalystHCID 13387N-methyl-2-pyrrolidoneSolvent4×

Procedure

U.S. Application No. 4,731,454 describes the preparation of N-methylpyrrolidone (NMP) by hydrogenating N-methylsuccinimide on a cobalt/rhenium/molybdenum catalyst. U.S. Application No. 3,109,005 discloses a process for the preparation of NMP by hydrogenating maleic anhydride (MAA)/methylamine mixtures on a Raney nickel catalyst. At reaction times of 10 hours, NMP yields of 70% are achieved in this process. According to the process of DE-A 22 00 600, NMP is obtained in a yield of 44% under the most favorable conditions by hydrogenating MAA/methylamine mixtures on palladium supported catalysts.

Workup

  1. customyields of 70%

Sources & evidence

ORD record
ord-864df0a815a141f6a64297e0c932249b
Source dataset
uspto-grants-1994_01
Patent number
US05276165

Reaction notes

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