24. Introducción
Son polihidroxi aldehídos o cetonas o
compuestos que conducen a ellos por
hidrólisis y sus derivados.
Se denominan Hidratos de carbono por
responder muchos de ellos a la formula
empírica:
C (H2O)n
25. Se producen en la fotosíntesis.
Las plantas verdes contienen clorofila que
capta de la luz solar la energía necesaria
para realizar el proceso:
6 CO2 + H2O
C6(H2O)6 + 6 O2
26.
27. CLASIFICACIÓN
C
a Aldosas
r Monosacárid
b os
Azúcare Cetosas
o
h s
-2 Di
i Oligosacárid
-3 Tri
d os
r -4 tetr
a -5 pent
t Polisacárid
-6 Hex
o os
-7 Hept
s
28. IMPORTANCIA
- Como principios inmediatos son soportes de la
vida
Alimento Cultura Alcohol
- Casa Higiene Medicina
Proporcionan:
Vestido Comodidad Decoración
- Muchas Polímero Furfural Políesteres
aplicaciones s
Sintesis Conserva Farmacia
en la industria
Química Quiral Celulosa Bebidas
33. MONOSACARIDOS: ALDOSAS
gr 165 6 2850 1186 40 /bs[[1 123 3075 80 2589]
]d end 759 2487 DSt [1 1663182962770 40 I 4010
[1 [0881 4010 746 4010] [03321 2589 3218I2397] chemdict DSt [2 I
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70 1 746 759 2181 759 75 1 3218 209240 [23182 3075] 2397begin SP3626DSt [4 I 742 3155 DSt [5DSt [4 I
638 4662 333 3825] 3033 4720 2727 3775]
864 4641 1169 4010] 3280 3961 3585 5026]
762 3520 762 3349] 3145 4150 3145 3961]
742 3349 742 5075] chemdict 3626 4456]
633 4770 328 3155] 746 4505 DSt DSt1186
I 2669
100 2669] 3162 4591 3162 4613]
4662] 3073 3470 2768 4591]
2669] 3344
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360
Seis carbonos: Aldohexosas
D-ribosa D-arabinosa
CH O CH O CH O CH O
H C OH HO C H H C OH HO C H
H C OH H C OH HO C H HO C H
H C OH H C OH H C OH H C OH
H C OH H C OH H C OH H C OH
CH2 OH currentpoint 192837465 currentpoint 192837465currentpoint 192837465
CH2 OH CH2 OH CH2 OH currentpoin
D-alosa D-altrosa D-glucosa D-manosa
34. Monosacáridos Estructura
4 3339] 7981 4689 8282 4989]
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S
Seis carbonos: Aldohexosas
D-xilosa D-lixosa
CH O
CH O CH O
CH O
H C OH
HO C H OH HO C H
H C
H C OH HO H
H C OH C
HO C H
HO C H
HO C H HO C H
HO C H
H C OH
H C OH H C OH
H C OH
C H 2OH
currentpoint 192837465 currentpoint 192837465
C H OH C H OH
currentpoi
2 C H OH
2 currentpoint 192837465
2
D-gulosa D-idosa D-galactosa D-talosa
36. Monosacáridos Estructura
MONOSACARIDOS: CETOSAS
Cuatro carbonos: Cetotetrosas
CH2 OH CH2 OH
C O C O
H C OH HO C H
CH2 OH CH2 OH
D-eritrulosa L-eritrulosa
37. Monosacáridos Estructura
MONOSACARIDOS: CETOSAS
Cinco carbonos:
Cetopentosas
CH2OH CH2OH
C O C O
H C OH HO C H
H C OH H C OH
CH2OH CH2OH
D-ribulosa D-xilulosa
38. Monosacáridos Estructura
MONOSACARIDOS: CETOSAS
Cinco carbonos:
Cetopentosas
CH2OH CH2OH CH2OH CH2OH
C O C O C O C O
H C OH HO C H H C OH HO C H
H C OH H C OH HO C H HO C H
H C OH H C OH H C OH H C OH
CH2OH CH2OH CH2OH CH2OH
D-psicosa D-fructosa D-Sorbosa D-tagatosa
D-ribulosa D-xilulosa
39. MONOSACARIDOS: CICLOS
OH
H O
C + R OH H C OR
R´ R´
Aldehido + Alcohol Hemiacetal
OH
R´ O
C + R OH R´ C OR
R´ R´
Cetona + Alcohol Hemicetal
40. Monosacáridos Estructura
MONOSACARIDOS: CICLOS
H O
HO C H H C OH
C
H C OH H C OH
H C OH O
O HO C H
HO C H HO C H
H C OH H C OH
H C OH
H C H C
H C OH
CH 2OH CH 2OH
CH 2OH
b-D-glucopiranosa D-glucosa a-D-glucopiranosa
Anillo de 6 miembros Como el del pirano
O
piranosas
41. Monosacáridos Estructura
MONOSACARIDOS: CICLOS
HOCH 2 O
HO C CH 2OH HOCH2 C OH
C
HO C H O HO C H O
HO C H
H C OH H C OH
H C OH H C
H C
H C OH CH2OH
CH 2OH
CH 2OH
b-D-fructofuranosa D-fructosa a-D-fructofuranosa
Anillo de 5 miembros Como el del furano
furanosas O
42. Monosacáridos Estructura
MONOSACARIDOS: CICLOS
CH 2OH
HO C H O
H C OH H H OH
O
HO C H OH H H
HO
H C OH
H C H OH
CH 2OH
Estructura en proyección deEstructura en proyección de
Fischer Haworth
43. Monosacáridos Estructura
MONOSACARIDOS: CICLOS
CH 2OH
HO C H O
H C OH H H OH
O
HO C H OH H H
HO
H C OH
HOCH2 C H OH
H
Estructura en proyección deEstructura en proyección de
Fischer Haworth
Una permutación
Inversión en C5