Calcium Carbonate → Calcium Bis-triflimide

HRID 890857Notes

Reaction equation

HRID 890857 reaction equation
C(=O)([O-])[O-].[Ca+2:5].[NH:6]([S:14]([C:17]([F:20])([F:19])[F:18])(=[O:16])=[O:15])[S:7]([C:10]([F:13])([F:12])[F:11])(=[O:9])=[O:8]>O>[NH:6]([S:7]([C:10]([F:13])([F:11])[F:12])(=[O:9])=[O:8])[S:14]([C:17]([F:20])([F:19])[F:18])(=[O:16])=[O:15].[NH:6]([S:7]([C:10]([F:13])([F:11])[F:12])(=[O:9])=[O:8])[S:14]([C:17]([F:20])([F:19])[F:18])(=[O:16])=[O:15].[Ca:5]

Participants

4

Reactant 2

HCID 10112Calcium CarbonateHCID 157857Bis(trifluoromethane)sulfonimide

Product 1

HCID 87968963Calcium Bis-triflimide

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

1.0 g of calcium(II) carbonate was suspended in 50 mL of water, to which freshly prepared HNTf2 (5.6 g) was added and stirred at room temperature for 24 hours. The reaction mixture was filtered and the filtrate was concentrated on a rotary evaporator and dried under vacuum (1 mmHg) for 4 hours at 150° C. The unpurified calcium bis-triflimide was found to display poor catalytic activity in Friedel-Crafts reactions.

Workup

  1. additionwas added
  2. filtrationThe reaction mixture was filtered
  3. concentrationthe filtrate was concentrated on a rotary evaporator
  4. customdried under vacuum (1 mmHg) for 4 hours at 150° C

Sources & evidence

ORD record
ord-6d2d45c48273436fb64240848f0e21b4
Source dataset
uspto-grants-2006_02
Patent number
US06998497B2

Reaction notes

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