Boric Acid → Calcium;2,3-dihydroxy-3-[2-hydroxy-5-(hydroxymethyl)-1,3,2-dioxaborolan-4-yl]propanoate

HRID 1583715

Reaction equation

HRID 1583715 reaction equation
[O-2].[Ca+2:2].[O:3]=[C:4]([OH:15])[C@@H:5]([C@H:7]([C@@H:9]([C@@H:11]([CH2:13][OH:14])[OH:12])[OH:10])[OH:8])[OH:6].[B:16]([OH:19])([OH:18])[OH:17]>O>[B:16]1([OH:17])[O:10][CH:9]([CH:7]([OH:8])[CH:5]([OH:6])[C:4]([O-:15])=[O:3])[CH:11]([CH2:13][OH:14])[O:12]1.[B:16]1([OH:19])[O:18][CH:9]([CH:7]([OH:8])[CH:5]([OH:6])[C:4]([O-:15])=[O:3])[CH:11]([CH2:13][OH:14])[O:17]1.[Ca+2:2]

Participants

5

Reactant 3

HCID 7628Boric AcidHCID 10690Gluconic AcidHCID 6850728Calciumoxide

Product 1

HCID 21969Calcium;2,3-dihydroxy-3-[2-hydroxy-5-(hydroxymethyl)-1,3,2-dioxaborolan-4-yl]propanoateYield 40%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Procedure

28 grams of calcium oxide were added to water to form a thick slurry. This slurry was slowly added with stirring to 392 grams of a 50% aqueous solution of technical grade gluconic acid. After all of the slurry was added the resultant mixture was cooled and 61.8 grams of technical grade boric acid added. The mixture was stirred until a dark brown solution was obtained and then adjusted by water addition to provide a 40% solids solution.

Workup

  1. customto form a thick slurry
  2. additionThis slurry was slowly added
  3. temperaturewas cooled
  4. customwas obtained

Sources & evidence

ORD record
ord-cf87304846d54a9e9fbd4af92568221d
Source dataset
uspto-grants-1985_11
Patent number
US04554020

Linked notes

Loading…