Chemistry CHEM S-20ab Lecture Notes - Lecture 20: Monosaccharide, Reagent, Phenylalanine
30 Apr 2018
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An%Introduc.on%to%Carbohydrates%
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!7"="$8="$"817$3E$97";"$18=>37)?=89";$E3'4?$:4$489'="<$
H7";"$monosaccharides$';'8(()$"I:;9$8;$8$@3="$;98>("$cyclic)hemiacetal5$$!789$8="$97"$
1)1(:1$7"@:81"98($E3=@;$3E$G('13;"$84?$E='193;"<$$DJ397$E3=@$KL@"@>"="?$=:4G;5F$$$
glucose%(2,3,4,5,6Xpentahydroxyhexanal)%
fructose%(1,3,4,5,6XpentahydroxyhexanX2Xone)%
2Xdeoxyribose%(3,4,5Xtrihydroxypentanal)%
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Stereochemistry%of%Carbohydrates%
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$+5$$H7"$9"=@:48($18=>34$DQ%F$78;$97"$RL134PG'=82345$$$
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$*5$$R4$97"$KL@"@>"="?$=:4G$E3=@,$8(($3E$97"$;'>;29'"49;$8="$equatorial5$
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Acetals,%Disaccharides,%&%Polysaccharides%
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O
HO
HO
OH
OH
HO
O
HO
HO
OH
OCH3
HO
CH3OH,&H⁺
