D-lactose

The corresponding tri- and hexa-fluoroacetylacetonates may be similarly prepared. The stability of the acetylacetonate is such that not only can it be resolved on passage through a column of D-lactose, but the enantiomers retain their integrity on nitration or bromination. 

Figure 8.7 Reaction schemes for hydrogenation of d-fructose, d-xylose, and d-lactose.

Kuusisto, J., Tokarev, A.V., Murzina, E.V., Roslund, M.U., Mikkola, J.-P., Murzin, D., and Salmi, T. (2007) From renewable raw materials to high-value added fine chemicals - catalytic hydrogenation and oxidation of D-lactose. Catal. Today, 121, 92-99. 

J.-P., Kuusisto, J., Kustov, L.M., and Murzin, D. (2007) Application of in-situ catalyst potential measurements for estimation of reaction performance D-lactose oxidation over Au and Pd catalysts. Chem. Eng.J., 134, 153-161. 

X-Ray studies on Na[(-)5 g-Co(ox)(aa)2],2H20 [aa = trans-iV-methyl-(S)-alaninate] confirm the RS configuration of the aa ligands and show the absolute configuration of the anion to be A. Fractional crystallization and column chromatography on D-lactose has been used to separate diastereoisomers of [Co(acac)2(L-Phe)] and [Co(acac)2(L-Val)]. The method was, however, unsuccessful for the corresponding L-Ala complex. ... 

Fig. 9 Compounds obtained from D-xylose (7), D-lactose (51), D-fucose (52), D-arabinose (8), and 3-deoxy-D-arabinose (53)...

Fig. 2.54 presents a two-dimensional carbon-proton shift correlation of D-lactose after mutarotational equilibration (40% a-, 60% / -D-lactose in deuterium oxide), demonstrating the good resolution of overlapping proton resonances between 3.6 and 4 ppm by means of the larger frequency dispersion of carbon-13 shifts in the second dimension. The assignment known for one nucleus - carbon-13 in this case - can be used to analyze the crowded resonances of the other nucleus. This is the significance of the two-dimensional CH shift correlation, in addition to the identification of CH bonds. For practical evaluation, the contour plot shown in Fig. 2.54(b) proves to be more useful than the stacked representation (Fig. 2.54(a)). In the case of D-lactose, selective proton decoupling between 3.6 and 4 ppm would not afford results of similiar quality. 

Fig. 2.54. Two-dimensional carbon-proton shift correlation of mutarotated D-lactose (1 mol/L in deuterium oxide , 3C 100.6 MHz H 400.1 MHz measuring time 90min transform lime 2.5 min) (a) stacked plot [64] (b) contour plot. 

Form A Form B Form C Form D Lactose Avicel... 

Note A, stearic acid B, magnesium stearate C, AEROSIL 380 D, lactose E, LUDIPRESS F, corn starch G, AVICEL PH 101 H, methylcellulose I, ethylcellulose J, EUDRAGIT RSPM K, mannitol L, relative humidity M, temperature N-W, pseudo variables. (+) is high level and (-) is low level. 

Henderson and Rule 94 separated dZ-p-phenylenebisiminocamphor into its active forms by passing its dilute petroleum ether solution through a column containing powdered d-lactose. The procedure was similar to that commonly used in chromatographic analysis. The d-form was more strongly adsorbed and hence collected near the top of the column the Worm was carried toward the hpttom. Several repetitions of the... 

R. Tressl, C. T. Piecchotta, D. Rewicki, and E. Krause, Modification of peptide lysine during Maillard reaction of D-glucose and D-lactose, in G, 2002, 203-209. 

The f-butylcalix[4]arene with two 2-aminoethyl groups at the distal positions of the narrow rim was easily reacted with sugar derived thioisocyanates to give the corresponding thioureas containing two D-glucose 35a, D-mannose 35b, D galactose 35c, or D-lactose 35d moieties.72... 

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