5-alkyl tetramic acids

Details 5-alkyl tetramic acids 5-alkyl tetramic acids

1989-09-05

1991-01-08

Springer, David B.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D20736

Patent

active

049837435

ABSTRACT:
A process for the production of 5-alkyl tetramic acids from 4-alkoxy-3-pyrrolin-2-ones and aldehydes or ketones. By basic catalysis, 5-alkylidene-4-alkoxy-3-pyrrolin-2-ones are first formed, which are converted into the target compounds by cleavage of the alkoxy group and catalytic hydrogenation.

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