Organic chemistry
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有机化学 Organic Chemistry PowerPoint PPT Presentation


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有机化学 Organic Chemistry. 第十八章 碳水化合物. 概论 单糖的结构 单糖的反应 二糖 多糖. 碳水化合物又称为糖类。它们是一类重要的天然有机化合物碳水化合物含有碳、氢、氧三种元素. 例如,纤维素、淀粉、葡萄糖、果糖、肝糖等等. 从化学结构上来看,碳水化合物是多羟基醛或多羟基酮,或者是通过水解能生成多羟基醛(或酮)的化合物。. 18-1 碳水化合物的概念. 可以用通式 C x (H 2 O) y 来表示 例如 : 葡萄糖 C 6 H 12 O 6 可以写成 C 6 (H 2 O) 6

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有机化学 Organic Chemistry

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Organic Chemistry


.

18-1

Cx(H2O)y

:C6H12O6 C6(H2O)6

C12H22O11 C12(H2O)11

C6H12O5)


,

.


18-2

2-

18-2-1


1C6H12O6HI

2

3



18-2-2

23-.


24=16.

:

2R3S4R5R-23456-


D-L

D-DL


.

D-:

DD


D


18-2-3

1

A

B


2

D-C-1C-5


D--D--D-

50:

-D-146+112

-D-150+18.7


D-

-D--D-


36%

64%


D---


3

;


--

--

-D--D-- -.



18-2-4

D--D--D-6436

-D-

25kJ/mol


-D-

De


18-3

1

18-3-1

.D-D-


2

3C

4-


18-3-2


18-3-3

1


2


C-1HE C-2C-3C-4C-5


18-3-4



2-

2--5


18-3-5

1


2


18-4

18-4-1

D-D-



18-4-2

D-

-4-


18-4-3

D-

-


18-5

18-5-1

10~20%80~90%D-



18-5-2

:D--D-

-D-

-D-

D--14-10000~150001600000~2400000


-


:

2.5~2.7ONO22.1~2.5ONO2



,,


18-5-3

()

----D-1,000,000 ~ 4,000,000


Thank You !


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