Which two D-pentose sugars give optically active alditols when reduced with NABH4

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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5.
Which two D-pentose sugars give optically active alditols when reduced with NABH4
CHO
н— он
CH2OH
D-glyceraldehyde.
Сно
CHO
H HOH
H HOH
CH2OH
„D-erythrose
HO H
H HOH
ČH2OH
D-threose
CHO
CHO
CHO
CHO
-OH
HO-H
H OH
Но
-O-
H +OH
но
-H
но-
H-
HFOH
CH2OH
H-
-OH
H +OH
H FOH
CH2OH
CH2OH
ČH2OH
D-ribose
D-arabinose
D-хylose
D-lyхose
CHO
CHO
CHO
CHO
Сно
CHO
CHO
CHO
HO-H
HO-H
HO-H
H HOH
но—н
но—н
H FOH
H HOH
H +OH
HO-H
H FOH
H-
-O-
HO-H
но-
H OH
H-
-O-
но
но—н
H FOH
HO-H
H +OH
CH2OH
H HOH
H
-OH
H HOH
H FOH
но
FH
HHOH
ČH2OH
HHOH
ČH2OH
H-
-OH
H
-OH
H-
-OH
-OH
ČH2OH
ČH2OH
CH2OH
CH2OH
ČH2OH
D-allose
D-altose
D-glucose
D-mannose
D-gulose
D-idose
D-galactose
D-talose
Transcribed Image Text:5. Which two D-pentose sugars give optically active alditols when reduced with NABH4 CHO н— он CH2OH D-glyceraldehyde. Сно CHO H HOH H HOH CH2OH „D-erythrose HO H H HOH ČH2OH D-threose CHO CHO CHO CHO -OH HO-H H OH Но -O- H +OH но -H но- H- HFOH CH2OH H- -OH H +OH H FOH CH2OH CH2OH ČH2OH D-ribose D-arabinose D-хylose D-lyхose CHO CHO CHO CHO Сно CHO CHO CHO HO-H HO-H HO-H H HOH но—н но—н H FOH H HOH H +OH HO-H H FOH H- -O- HO-H но- H OH H- -O- но но—н H FOH HO-H H +OH CH2OH H HOH H -OH H HOH H FOH но FH HHOH ČH2OH HHOH ČH2OH H- -OH H -OH H- -OH -OH ČH2OH ČH2OH CH2OH CH2OH ČH2OH D-allose D-altose D-glucose D-mannose D-gulose D-idose D-galactose D-talose
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