Preparation of 2-acetyl-1-pyrroline

Details Preparation of 2-acetyl-1-pyrroline Preparation of 2-acetyl-1-pyrroline

1994-12-27

1995-08-29

Brust, Joseph Paul

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548565, C07D20720

Patent

active

054461715

ABSTRACT:
2-acetyl-1-pyrroline is prepared by hydrolyzing a 2-(1-alkoxyethenyl)-1-pyrroline compound with an acid to obtain a reaction medium and then adding an equimolar amount of a base to the reaction medium to obtain a neutralized reaction medium containing 2-acetyl-1-pyrroline.

REFERENCES:
patent: 3620771 (1971-11-01), Hunter et al.
patent: 3725425 (1973-04-01), Hunter et al.
patent: 4522838 (1985-06-01), Buttery et al.
patent: 5280127 (1994-01-01), Duby et al.
Abstract No. 84327 D/46 of Japanese Patent No. JS 6125-364 (1980).
Buchi, et al., "Synthesis of 2-Acetyl-1,4,5,6,-Tetrahydro-Pyridine, A Constituent of Bread Aroma," J. Org. Chem., vol. 36, No. 4, (1971) pp. 609-610.
Buttery, et al., "Cooked Rice Aroma and 2-Acetyl-1-Pyrroline," J. Agric. Food. Chem., (1983) 31, pp. 823-826.

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