糖类化合物的定义和分类 按功能基分 醛糖-CHO 酮糖 C=0 丙糖 (triose) 按含C数分 丁糖 (tetrose) 戊糖 (pentose)D-r ibose 己糖 (hexose)Glucose Frucose 按构型分 D-型糖 L型糖 按化学性质 还原糖 非还原糖
按功能基分 醛糖酮糖 -CHO C=O 按含C数分 丙糖 (triose) 丁糖 (tetrose) 戊糖 (pentose)D-ribose 己糖 (hexose) Glucose Frucose 按构型分 D-型糖 L-型糖 按化学性质 还原糖 非还原糖 糖类化合物的定义和分类
糖类化合物的定义和分类 醛 丙糖 丁糖 戊糖 己 CHO CHO CHOH CHO CHOH CHOH CHO CHOH CHOH CHOH CHOH CHOH CHOH CHOH CH20H CH20H CH20H CH20H 手性碳原子数1 2 3 4 旋光异构体数2 4 8 16
CHO CHOH CHOH CH2OH CHO CHOH CH2OH CHO CHOH CHOH CHOH CH2OH CHO CHOH CHOH CHOH CHOH CH2OH 手性碳原子数 1 2 3 4 旋光异构体数 2 1 4 8 6 醛 丙糖 丁糖 戊糖 己 糖类化合物的定义和分类
CHO D-醛 H-OH CH20H CHO CHO 一OH OH H一 一OH CH20H CH20H CHO CHO CHO CHO H r H HO -H H OH HO- -H H -0H H0- H H0= H H OH -0H H十 OH H OH CH20H CH20H CH20H CH20H CHO CHO CHO CHO CHO CHO CHO CHO 0 H0- H 8册 H 8士H -0H 8 OH H -H OH OH OH 一0H H ■ 一0H 一0H CH20H CH20H CH20H CH20H CH20H CH2OH CH20H CH20H 差向异构
CHO CH2OH H OH CHO CH2OH OH H OH H CHO CH2OH OH HO H H HO CHO OH OH OH H H CH2OH H HO CHO OH H OH H CH2OH HO CHO HO OH H H H CH2OH H CHO OH OH OH H OH H H CH2OH HO H CHO H OH OH OH H H CH2OH CHO OH OH OH HO H H H H CH2OH HO CHO H OH OH HO H H H CH2OH HO CHO OH H OH H H OH H CH2OH HO HO CHO H H OH H OH H CH2OH HO CHO OH H OH HO H H H CH2OH HO HO CHO H H OH HO H H CH2OH D-醛 CHO HO OH OH H H H CH2OH 差向异构
糖类化合物的定义和分类 酮 丙糖 丁糖 戊糖 己 CH20H CH20H C=0 CH20H C=0 CHOH CH2OH C=0 CHOH CHOH C=0 CHOH CHOH CHOH CH20H CH20H CH20H CH20H 手性碳原子数0 1 2 3 旋光异构体数 0 2 4 8
C CH2OH O CH2OH C CHOH CH2OH O CH2OH C CHOH CHOH CH2OH O CH2OH C CHOH CHOH CHOH CH2OH O CH2OH 酮 丙糖 丁糖 戊糖 己 手性碳原子数 0 1 32 旋光异构体数 0 2 84 糖类化合物的定义和分类
D-酮 CH20H CH2OH =0 =0 H- OH CH2OH CH20H CH20H CH20H =0 =0 H OH HO- H H- OH H- OH CH2OH CH20H CH20H CH20H CH20H CH20H =0 =0 0 =0 H OH HO- H H OH HO -H H OH H- OH - 一H HO -H H- OH H- OH H OH H- OH CH20H CH20H CH20H CH20H
CH2OH O CH2OH CH2OH H O CH2OH OH H CH2OH OH O CH2OH H OH CH2OH H O CH2OH OH HO H O H OH CH2OH CH2OH H OH H OH O H CH2OH CH2OH OH HO H H OH O H HO OH CH2OH CH2OH H H OH O HO H CH2OH CH2OH H HO H OH D-酮