4-Toluenesulfonyl chloride → 1-para-Toluenesulfonyl-3-isopropenyl-4,5-di-O-methyl-beta-D-psicopyranos

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Reaction Steps

Following the procedure described for the preparation of Example 10, starting from 0.80 g (3.22 mmol) of the compound obtained in Example 29 and 1.53 g of tosyl chloride in 15 ml of anhydrous pyridine, then purification by chromatography on silica gel (eluant: diethyl ether/pentane, 2:1), 0.92 g (2.28 mmol) of the desired product in the form of a white-coloured foam is obtained.

Provenance & Evidence