p-Toluenesulfonic acid monohydrate → HCID 70131219, compound

Participants

Reaction Steps

2 g of p-toluene sulfonic acid monohydrate was added to 150 ml of a methanol solution containing 2.8 g of 1,6-anhydro-3,4-dideoxy-3-hydroxymethyl-β-D-glycero-hex-3-enopyranos-2-ulose obtained in the above step (1), and the mixture was refluxed under heating for one hour. Disappearance of the starting material was confirmed by TLC, and then the solvent was distilled off under reduced pressure. The obtained crude product was purified by silica gel column chromatography (ethyl acetate: hexane =1:2) to obtain 0.8 g of the desired product (Intermediate No. 48). The NMR analytical data of this product are as follows.

Provenance & Evidence