反应 #1365705

ord-2a5e4ca8d1144f40a279578c97fc92b7

反应方程式

OC[C@H]1O[C@@H](O[C@@H]2[C@@H](CO)O[C@](O)(CO)[C@H]2O)[C@H](O)[C@@H](O)[C@H]1O
lactitol
OC[C@H]1O[C@@H](O[C@@H]2[C@@H](CO)O[C@](O)(CO)[C@H]2O)[C@H](O)[C@@H](O)[C@H]1O
lactitol
OC[C@H]1O[C@@H](O[C@@H]2[C@@H](CO)O[C@](O)(CO)[C@H]2O)[C@H](O)[C@@H](O)[C@H]1O
lactitol
OC[C@H]1O[C@@H](O[C@@H]2[C@@H](CO)O[C@](O)(CO)[C@H]2O)[C@H](O)[C@@H](O)[C@H]1O
lactitol
→
O.O.OC[C@@H](O)[C@@H](O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O)[C@H](O)[C@@H](O)CO
lactitol dihydrate
O.OC[C@@H](O)[C@@H](O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O)[C@H](O)[C@@H](O)CO
lactitol monohydrate

反应物

OC[C@H]1O[C@@H](O[C@@H]2[C@@H](CO)O[C@](O)(CO)[C@H]2O)[C@H](O)[C@@H](O)[C@H]1O
lactitol
OC[C@H]1O[C@@H](O[C@@H]2[C@@H](CO)O[C@](O)(CO)[C@H]2O)[C@H](O)[C@@H](O)[C@H]1O
lactitol
OC[C@H]1O[C@@H](O[C@@H]2[C@@H](CO)O[C@](O)(CO)[C@H]2O)[C@H](O)[C@@H](O)[C@H]1O
lactitol
OC[C@H]1O[C@@H](O[C@@H]2[C@@H](CO)O[C@](O)(CO)[C@H]2O)[C@H](O)[C@@H](O)[C@H]1O
lactitol

试剂

无

溶剂

O
water

反应条件

详细条件
See reaction.notes.procedure_details.

后处理

  1. 1
    其他reaction
  2. 2
    过滤after filtration, purification and possibly concentration
  3. 3
    其他by evaporation
  4. 4
    其他is very suitable as a source of lactitol for the preparation of the mixture
  5. 5
    其他is that no crystallization step

实验过程

Because the mixture according to the invention is a liquid, it is preferable to start from the lactitol reaction mixture obtained after the hydrogenation of lactose. Said reaction is usually performed in an aqueous medium in the presence of a suitable hydrogenation catalyst. The lactitol solution in water obtained after filtration, purification and possibly concentration by evaporation is very suitable as a source of lactitol for the preparation of the mixture according to the invention. The condition for using such a solution is, however, that the lactitol solution is sufficiently pure, that is to say at least 90% by weight, and preferably 95% by weight, of the content of dissolved solids is composed of lactitol. The advantage of using such a lactitol is that no crystallization step is necessary to obtain crystalline lactitol monohydrate or crystalline lactitol dihydrate which then has to be redissolved. The advantage of using a crystalline lactitol hydrate is the high purity (usually more than 97% by weight of lactitol).

来源

DOI: 10.6084/m9.figshare.5104873.v1专利: US06444250B1uspto-grants-2002_09