Benzene → 2-(2,2-Dimethyl-5-phenyl-3,4-dihydro-2H-pyrrol-3-yl)pyridine

Participants

Reaction Steps

9.5 G. of 2,2-dimethyl-3-phenyl-2H-azirine and 12 g. of freshly distilled 2-vinylpyridine are irradiated in 2 l. of benzene for 7 hours under the conditions given in Example 11. After evaporation of the solvent under reduced pressure, the resulting residue is taken up in 400 ml. of n-pentane and decolorized with active carbon. After 48 hours at -18° C., the crude product which crystallizes is recrystallized from n-pentane/small amount of benzene to yield 2-(5,5-dimethyl-2-phenyl-1-pyrrolin-4-yl)-pyridine (melting point 101°-102° C.).

Provenance & Evidence