Pyridine → HCID 23456200, compound

Participants

Reaction Steps

Following a procedure similar to that described in Example 13C, 17.48 g. (0.06 mole) of 2-phenyl-3-formyl-2,4,5,6-tetrahydro-1,4,6,6-tetramethylcyclopenta[c]pyrrole-4-carbonitrile was oxidized with 18.9 g. (0.12 mole) of potassium permanganate in 120 ml. of pyridine and 90 ml. of water to give 4.03 o 2-phenyl-3-carboxy-2,4,5,6-tetrahydro-1,4,6,6-tetramethylcyclopenta[c]pyrrole-4-carbonitrile which was esterified by reaction of 9.83 g. (0.032 mole) of the acid with 1.713 g. (0.035 mole) of a 50% mineral oil dispersion of sodium hydride followed by 2.23 ml (0.036 mole) of methyl iodide. There was thus obtained 4.18 g. of 2-phenyl-3-carbomethoxy-2,4,5,6-tetrahydro-1,4,6,6-tetramethylcyclopenta[c]pyrrole-4-carbonitrile.

Provenance & Evidence