huagongshe.com
HRID74845

反应详情

EQUATION

反应方程式

HRID 74845 的结构方程式

REACTANTS

反应物

2
结构：CC(=O)OC[C@H]1O[C@H](O[C@H]2[C@H](OC(C)=O)[C@@H](OC(C)=O)[C@@H](O[C@H]3[C@H](OC(C)=O)[C@@H](OC(C)=O)C(OC(C)=O)O[C@@H]3COC(C)=O)O[C@@H]2COC(C)=O)[C@H](OC(C)=O)[C@@H](OC(C)=O)[C@@H]1OC(C)=O
HCID11480116

Maltotriose Peracetate

C40H54O27

结构：Br.CC(=O)O
HCID21893785

未命名化合物

PRODUCTS

生成物

1
结构：CC(=O)OC[C@H]1O[C@H](Br)[C@H](OC(C)=O)[C@@H](OC(C)=O)[C@@H]1O[C@H]1O[C@H](COC(C)=O)[C@@H](O[C@H]2O[C@H](COC(C)=O)[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]2OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O
HCID13055893

未命名化合物

AUXILIARIES

试剂、催化剂与溶剂

1
结构：ClCCl
溶剂HCID6344

Dichloromethane

CH2Cl2

2 次

CONDITIONS

反应条件

温度
0 °C

PROCEDURE

实验过程

Maltotriose peracetate (71)36 (200 mg, 207 μmol) was taken up in DCM (1 mL) and 33% HBr/HOAc (0.7 mL) at 0° C. The mixture was stirred at 0° C. for four hours. The solution was diluted with DCM and washed with ice-water (×2), NaHCO3 (sat.) (×2) and brine (×1), before being dried (Na2SO4) and the solvent evaporated to yield the bromide 72 as white solid which was reacted on without further purification or characterisation.

WORKUP

后处理

  1. customat 0° C
  2. washwashed with ice-water (×2), NaHCO3 (sat.) (×2) and brine (×1)
  3. dry with materialbefore being dried (Na2SO4)
  4. customthe solvent evaporated