Hydrogen iodide → 2-Methyl-3H-benzotellurazolium Iodide

HRID 543080Notes

Reaction equation

HRID 543080 reaction equation
[CH3:1][C:2]1[Te:3][C:4]2[CH:10]=[CH:9][CH:8]=[CH:7][C:5]=2[N:6]=1.[IH:11]>CC(C)=O>[I-:11].[CH3:1][CH:2]1[NH2+:6][C:5]2[CH:7]=[CH:8][CH:9]=[CH:10][C:4]=2[Te:3]1

Participants

4

Reactant 2

HCID 24841Hydrogen iodideHCID 132147962-Methyl-1,3-benzotellurazole

Product 1

HCID 198452132-Methyl-3H-benzotellurazolium Iodide

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

To a solution of 2-methylbenzotellurazole (Example 18) (0.81 g, 0.0033 mole) in acetone (25 ml), chilled in an ice bath, was added slowly with stirring 55 mole percent hydriodic acid (1 ml). The product began precipitating from solution. After the addition was complete, the mixture was stirred at ice bath temperature for approximately 10 minutes. The solid was isolated by filtration, washed with diethyl ether, and dried under vacuum at room temperature. Yield 1.13 g (92%) of yellow powder, m.p. 209°-211° C. The C, H, and N elemental analyses and the infrared, nuclear magnetic resonance, and mass spectra of the sample were in agreement with that expected for the structural formula.

Workup

  1. additionwas added slowly
  2. customThe product began precipitating from solution
  3. additionAfter the addition
  4. customThe solid was isolated by filtration
  5. washwashed with diethyl ether
  6. customdried under vacuum at room temperature

Sources & evidence

ORD record
ord-ceb0e9aa191040699626e2b25a3379ee
Source dataset
uspto-grants-1987_04
Patent number
US04661438

Reaction notes

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