Potassium Cyanide → HCID 23456202, compound

Participants

Reaction Steps

Reduction of the latter with hydrogen over a palladium-on-charcoal catalyst; alkaline saponification of the resulting 3-(1,2,5-trimethyl-3-pyrrole) propionitrile; cyclization of the resulting 3-(1,2,5-trimethyl-3-pyrrole)propionic acid with polyphosphoric acid; reaction of the resulting 4-oxo-1,2,3-trimethyl-2,4,5,6-tetrahydrocyclopenta[c]pyrrole with methyl magnesium bromide; and reaction of the resulting 4-hydroxy-1,2,3,4-tetramethyl-2,4,5,6-tetrahydrocyclopenta[c]pyrrole with potassium cyanide and potassium acetate in glacial acetic acid using the procedure described above in Example 10 affords 1,2,3,4-tetramethyl-2,4,5,6-tetrahydrocyclopenta[c]pyrrole-4-carbonitrile.

Provenance & Evidence