GlyTouCan:G36918VO → Isomaltitol

HRID 1764730

Reaction equation

HRID 1764730 reaction equation
[CH2:1]([OH:23])[C@H:2]1[O:7][C@H:6]([O:8][CH2:9][C@H:10]2[O:14][C:13]([OH:17])([CH2:15][OH:16])[C@@H:12]([OH:18])[C@@H:11]2[OH:19])[C@H:5]([OH:20])[C@@H:4]([OH:21])[C@@H:3]1[OH:22]>[Ni]>[CH2:1]([OH:23])[C@H:2]1[O:7][C@H:6]([O:8][CH2:9][C@@H:10]([OH:14])[C@@H:11]([OH:19])[C@H:12]([OH:18])[C@@H:13]([OH:17])[CH2:15][OH:16])[C@H:5]([OH:20])[C@@H:4]([OH:21])[C@@H:3]1[OH:22]

Participants

3

Reactant 1

HCID 439559GlyTouCan:G36918VO2×

Product 1

HCID 94169IsomaltitolYield 49.7%

Reagents, catalysts & solvents 1

HCID 935NickelCatalyst

Procedure

In accordance with the process described in Example 1, 7.5 kg isomaltulose were dissolved at 80° C to form a 75% by weight aqueous solution and then transferred to a heated autoclave equipped with an agitator and having a capacity of 20 l. In the autoclave the solution was mixed with an aqueous catalyst suspension containing 500 g Raney nickel. Hydrogenation and crystallization were then carried out as described in Example 1. After a reaction period of 3 hours, the isomaltulose charge had been hydrogenated to form 3.75 kg each of isomaltitol and glucopyranosido-1,6-mannitol. 3.45 kg isomaltitol and 3.45 kg glucopyranosido-1,6-mannitol could then be obtained therefrom in crystal form by means of the fractional crystallization operation described in Example 1.

Workup

  1. dissolutionwere dissolved at 80° C
  2. customto form a 75% by weight aqueous solution
  3. customequipped with an agitator
  4. additionIn the autoclave the solution was mixed with an aqueous catalyst suspension
  5. customHydrogenation and crystallization
  6. customAfter a reaction period of 3 hours

Sources & evidence

ORD record
ord-24884035a57d4a6da27d25565876935a
Source dataset
uspto-grants-1978_09
Patent number
US04117173

Linked notes

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