Piperidine → HCID 131715635, compound

Participants

Reaction Steps

Analogously to the procedure described in Example 2, from 4.8 g (0.015 mol) of 1,1',5,5'-tetrahydro-4-hydroxy-2,2'-dioxo-[3,4'-bi-2H-pyrrole]-1,1'-diacetic acid dimethyl ester and 25 ml of piperidine there is obtained 1,1',5,5'-tetrahydro-4-hydroxy-2,2'-dioxo-[3,4'-bi-2H-pyrrole]-1,1'-diacetic acid dipiperidide in the form of pale yellow microcrystals having a melting point of 150°-155° (decomposition).

Provenance & Evidence