3-Cyanophenol → 3-cyanophenyl 2,3,4-tri-O-acetyl-5-thio-beta-D-xylopyranoside

Beteiligte Stoffe

Reaktionsschritte

If the procedure described in Preparation LXXVIII is followed starting from 0.5 g (1.4.10-3 mol) of 2,3,4-tri-O-acetyl-5-thio-D-xylopyranosyl bromide, 0.25 g (2.1.10-3 mol) of 3-hydroxybenzonitrile and 170 mg (2.1.10-3 mol) of zinc oxide (ZnO) in 4 ml of anhydrous toluene and 4 ml of acetonitrile, 138 mg (yield: 25%) of the expected product are obtained after purification by chromatography on silica gel using a hexane/ethyl acetate mixture (2/1 v/v) as the eluent, and precipitation in ether.

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