V. Rolland et al., CONVENIENT PREPARATION OF -3,5-DI-O-P-TOLUOYL-ALPHA-D-ERYTHRO-PENTOFURANOSYL CHLORIDE, Synthetic communications, 27(20), 1997, pp. 3505-3511
By using acetyl chloride as HCl generator, the procedure for the Hoffe
r preparation of the alpha-chloro sugar 4a was significantly improved.
The alpha-configuration of the chloro atom was confirmed by using NOE
measurement. Sequential transformation of 4a to the beta-anomer and t
o the furfuryl derivative 6 was studied.