Phase-selective gelators based on closed-chain glucose derivatives: their applications in the removal of dissolved aniline/nitrobenzene, and toxic dyes from contaminated water
containing cis-vicinal diol, the substrate scope also includes glycosides without cis-vicinal diol. For such a substrate scope, usually, only methods using stoichiometric amounts of organotinreagents can lead to the same protection pattern with high selectivities and highly isolated yields (84–97% in most cases). Therefore, SnCl2, as a low toxicity and extremely cheap reagent, should be the best catalyst