Methyl triflate → 1,2,5-Trimethylnaphtho[1,2-d]tellurazolium Trifluoromethanesulfonate

HRID 543099Notes

Reaction equation

HRID 543099 reaction equation
[CH3:1][C:2]1[Te:3][C:4]2[CH:14]=[C:13]([CH3:15])[C:12]3[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=3)[C:5]=2[N:6]=1.[F:16][C:17]([F:24])([F:23])[S:18]([O:21]C)(=[O:20])=[O:19]>ClCCl>[F:16][C:17]([F:24])([F:23])[S:18]([O-:21])(=[O:20])=[O:19].[CH3:17][N+:6]1[C:5]2[C:7]3[C:12]([C:13]([CH3:15])=[CH:14][C:4]=2[Te:3][C:2]=1[CH3:1])=[CH:11][CH:10]=[CH:9][CH:8]=3

Participants

4

Reactant 2

HCID 9526Methyl triflateHCID 143241222,5-Dimethylnaphtho[1,2-d]tellurazole

Product 1

HCID 143241621,2,5-Trimethylnaphtho[1,2-d]tellurazolium Trifluoromethanesulfonate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

2,5-Dimethylnaphtho[1,2-d]tellurazole (Example 28) (0.93 g=0.003mole) was dissolved in dry dichloromethane, and methyl trifluoromethanesulfonate (0.33 ml=0.003 mole) was added. The flask was sealed and kept over a weekend. Bright yellow plates (0.88 g, 61% of theory) formed. The product was recrystallized from 10 ml of acetone by addition of 20 ml of diethyl ether. The melting point was 224°-230° C. The mass and nuclear magnetic resonance spectra were in agreement with that expected for the structural formula.

Workup

  1. customThe flask was sealed
  2. waitkept over a weekend
  3. customBright yellow plates (0.88 g, 61% of theory) formed
  4. customThe product was recrystallized from 10 ml of acetone by addition of 20 ml of diethyl ether

Sources & evidence

ORD record
ord-8446f427c556448d8f451315f6ea7e48
Source dataset
uspto-grants-1987_04
Patent number
US04661438

Reaction notes

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