Boric Acid → HCID 131733210, compound

HRID 520800Notes

Reaction equation

HRID 520800 reaction equation
[B:1]([OH:4])([OH:3])[OH:2].[C:5]([O:8]C(=O)C)(=[O:7])[CH3:6]>O>[C:5]([OH:8])(=[O:7])[CH3:6].[C:5]([OH:8])(=[O:7])[CH3:6].[C:5]([OH:8])(=[O:7])[CH3:6].[B:1]([OH:4])([OH:3])[OH:2]

Participants

4

Conditions

Temperature
73.8499984741211 °C

Procedure

86.4 g (1.40 mol) of boric acid (for production of a catalyst) was added to 17.9 L (190 mol) of acetic anhydride in a nitrogen atmosphere, and the mixture was heated and stirred at 70.0 to 77.7° C. for 30 minutes. Then the mixture was cooled to an internal temperature of 24.7° C. (warm water temperature setting: 23.0° C.). Then boric acid was added in four portions to the solution mixture. More specifically, 842 g (13.6 mol) of boric acid (the first portion) was added to the solution mixture, and the resultant mixture was stirred at 24.7 to 27.4° C. for 30 minutes. Then 842 g (13.6 mol) of boric acid (the second portion) was added to the solution mixture, and the resultant mixture was stirred at 24.3 to 26.3° C. for 30 minutes. 842 g (13.6 mol) of boric acid (the third portion) was added to the solution mixture, and the resultant mixture was stirred at 24.3 to 26.8° C. for 30 minutes. 842 g (13.6 mol) of boric acid (the fourth portion) was added to the solution mixture, and the resultant mixture was stirred at 25.1 to 28.3° C. for 30 minutes. The solution mixture was stirred at 50.0 to 54.9° C. for 30 minutes to obtain a boric acid triacetate adjusting solution.

Workup

  1. temperaturethe mixture was heated
  2. stirringThe solution mixture was stirred at 50.0 to 54.9° C. for 30 minutes

Sources & evidence

ORD record
ord-318c2f1cb7384753a17e3d9a2673982c
Source dataset
uspto-grants-2016_05
Patent number
US09328089B2

Reaction notes

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