Carbon Dioxide → 5,6-Dimethoxy-2-methylbenzotellurazole

Reaction equation

[Cl-].[CH3:2][O:3][C:4]1[C:5]([O:14][CH3:15])=[CH:6][C:7]2[Te:11][C:10]([CH3:12])=[NH+:9][C:8]=2[CH:13]=1.C(=O)(O)[O-].[Na+].C(=O)=O>O>[CH3:2][O:3][C:4]1[C:5]([O:14][CH3:15])=[CH:6][C:7]2[Te:11][C:10]([CH3:12])=[N:9][C:8]=2[CH:13]=1

Participants

Procedure

5,6-Dimethoxy-2-methylbenzotellurazolium chloride (Example 12) (10 g) was ground with an equal quantity of sodium bicarbonate and a little water in a mortar until evolution of carbon dioxide ceased. The product was collected by filtration, washed with water and dried in a vacuum to yield ≃8.5 g of colorless powder, m.p. 78°-80° C. Slow crystallization from cyclohexane yielded well defined prisms, m.p. 80°-83° C. The mass spectra and nuclear magnetic resonance spectra were in agreement with that expected for the structural formula.