Question: D-(-) -Erythrose has the formula HOCH2-CH(OH) -CH(OH)-CHOand the D in its name implies that it can be degraded to D-(-)-glyceraldehyde. The (-) in its name
D-(-) -Erythrose has the formula HOCH2-CH(OH) -CH(OH)-CHOand the D in its name implies that it can be degraded to D-(-)-glyceraldehyde. The (-) in its name implies that D-(-)-erythrose is optically active (levorotatory).
When D-(-)-erythrose is reduced (using H2 and a nickel catalyst), it gives an optically inactive product of formula HOCH2-CH(OH) -CH(OH) -CH2OH.
Knowing the absolute configuration of D-(-)-glyceraldehyde (Section 5-14), determine the absolute configuration of D-(-)-erythrose.
When D-(-)-erythrose is reduced (using H2 and a nickel catalyst), it gives an optically inactive product of formula HOCH2-CH(OH) -CH(OH) -CH2OH.
Knowing the absolute configuration of D-(-)-glyceraldehyde (Section 5-14), determine the absolute configuration of D-(-)-erythrose.
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