反应详情

As described under 1.2, 10.3 g (0.05 mol) of α-hydroxyimino-3,4-dimethoxybenzyl cyanide are reacted with 11.7 g (0.055 mol) of 1-octanesulfonyl chloride in the presence of triethylamine. After recrystallisation of the crude product from ethyl acetate/hexane, 19.1 g (87%) of α-(n-octylsulfonyloxyimino)-3,4-dimethoxybenzyl cyanide are obtained in the form of beige crystals having a melting point of 72-75° C. The 1H-NMR spectrum of the compound shows that it is a pure stereoisomer. The UV spectrum (acetonitrile) of the substance shows a broad absorption band with a maximum at 349 nm (ε=11330) that extends to 435 nm. Elemental analysis: C18H26N2O5S (382.48)

1. customAfter recrystallisation of the crude product from ethyl acetate/hexane, 19.1 g (87%) of α-(n-octylsulfonyloxyimino)-3,4-dimethoxybenzyl cyanide
2. customare obtained in the form of beige crystals