349554-59-2Relevant articles and documents
THE ISOPROPYLIDENATION OF D-RIBOSE DIETHYL DITHIOACETAL AND RIBITOL. A NEW SYNTHESIS OF α- AND β-D-RIBOFURANOSYLETHYNE via 2,3:4,5-DI-O-ISOPROPYLIDENE-aldehydo-D-RIBOSE
Aslani-Shotorbani, Gaffar,Buchanan, J. Grant,Edgar, Alan R.,Shahidi, Parvin K.
, p. 37 - 52 (1985)
The reaction of D-ribose diethyl dithioacetal with acetone and sulphuric acid in the presence of anhydrous copper sulphate gives the 2,3:4,5-di-O-isopropylidene derivative 14 (40percent) and the isomeric 2,5:3,4-di-O-isopropylidene acetal 17 (40percent),