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HRID1761298

反应详情

EQUATION

反应方程式

HRID 1761298 的结构方程式

REACTANTS

反应物

2
结构：OC[C@H]1O[C@H](OC[C@H]2O[C@H](O[C@]3(CO)O[C@H](CO)[C@@H](O)[C@@H]3O)[C@H](O)[C@@H](O)[C@@H]2O)[C@H](O)[C@@H](O)[C@H]1O
HCID439242

Raffinose

C18H32O16

结构：CC(=O)[O-].[Na+]
HCID517045

Sodium Acetate

C2H3NaO2

PRODUCTS

生成物

1
结构：CC(=O)O[O-].OC[C@H]1O[C@H](OC[C@H]2O[C@H](O[C@]3(CO)O[C@H](CO)[C@@H](O)[C@@H]3O)[C@H](O)[C@@H](O)[C@@H]2O)[C@H](O)[C@@H](O)[C@H]1O
HCID131724722

未命名化合物

AUXILIARIES

试剂、催化剂与溶剂

1
结构：CC(=O)OC(C)=O
溶剂HCID7918

Acetic anhydride

C4H6O3

PROCEDURE

实验过程

Anhydrous raffinose (252 g, 0.50 mol) was added to 60 g anhydrous sodium acetate and stirred in 800 mL of acetic anhydride previously equilibrated to 100 degree C. Complete homogeneous solution is obtained in 30-50 minutes. The reaction is left to continue for 1-2 hours, after which the reaction mixture was poured into 4 liters of ice and left to stand for 2 hours. The raffinose peracetate precipitate formed is separated from the supernatant solution, redissolved in dichloromethane and washed three times with saturated sodium bicarbonate solution at neutral pH. The dichloromethane solution was then decolorized with 2.0 g activated charcoal and vacuum dried to give 492 g (90% yield) of raffinose peracetate white powder.

WORKUP

后处理

  1. custompreviously equilibrated to 100 degree
  2. customComplete homogeneous solution is obtained in 30-50 minutes
  3. waitThe reaction is left
  4. waitleft
  5. waitto stand for 2 hours