32579-95-6Relevant articles and documents
Catalytic enantioselective reactions. Part 7. Synthesis of new β-aminoalcohols derived from α-D-glucose as chiral catalysts for the catalytic enantioselective addition of diethylzinc to aldehydes
Cho,Kim
, p. 855 - 865 (1996)
A series of new 1,2-O-isopropylidene-3-O-methyl-6-deoxy-6-N,N-dialkylamino-α-D-glucof uranoses 1 and 1,2-O-isopropylidene-3,6-dideoxy-6-N,N-dialkylamino-α-D-glucofuranose s 1' were prepared from α-D-glucose and their enantioselectivities compared as chiral catalysts for the ethylation of benzaldehyde and heptanal with diethylzinc.
Control of regioselectivity in reactions of dialkylstannylene acetals. Part I. A dramatic reversal of regioselectivity in mono-p-toluenesulfonation reactions
Kong, Xianqi,Grindley, T. Bruce
, p. 2396 - 2404 (2007/10/02)
The regioselectivities of p-toluenesulfonation reactions of dialkylstannylene acetals obtained from a number of carbohydrate-derived terminal 1,2-diols in the absence of added nucleophiles have been explored as functions of the carbohydrate structure, the
Inversion of regioselectivity in reactions of diols through the use of hexamethylenestannylene acetals as intermediates
Grindley,Kong
, p. 5231 - 5234 (2007/10/02)
Hexamethylenestannylene acetals obtained from a variety of carbohydrate-derived terminal 1,2-diols give good to excellent regioselectivity for tosylation at the secondary oxygen. In contrast, non-cyclic dialkylstannylene acetals react mainly at the primary oxygen. These results are attributed to the greater stability of the dominant stannylene acetal dimers for hexamethylenestannylene acetals.