Chair conformation of glucose

The other anomer of glucose, in contrast, has its anomeric proton (/31) in the axial position. In the preferred chair conformation of glucose, protons occupy all of the other axial positions leading to presumed diaxial interactions between H-l (/31) and H-3 (/33) and between H-l (/31) and H-5 (/35).The ROESY spectrum reveals three interactions with the anomeric proton, /SI, at 4.67 ppm. The H-2 COSY interaction is, of course, present, and the two-diaxial NOE interactions to H-3 (/33) and H-5 (/S5) are quite evident. 

In Problem 3.59, you were asked to draw the more stable chair conformation of glucose, a molecule in which all groups on the six-membered ring are equatorial (See Examples 6.2, 6.5, 6.6)... 

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