Pyridine → HCID 21404275, compound

Participants

Reaction Steps

0.976 G. of 4'-cyano-4-hydroxy-biphenyl are dissolved in 10 ml. of absolute pyridine and reacted with 0.90 g. of chloroformic acid n-pentyl ester as in Example 1. The 1.5 g. of yellow, partially crystallized oil obtained according to the procedure described in Example 1 is dissolved in benzene and chromatographed on 90 g. of silica gel. Benzene elutes 1.479 g. of colorless crystrals which are recrystallized from ether-hexane up to constant melting point and clearing point. The pure 4'-cyano-4-biphenylyl n-pentyl carbonate obtained melts at 50.1°-51.0° and has a clearing point of 61.1°. UV (EtOH): ε 270 = 26800.

Provenance & Evidence