反应详情

2-Methylbenzotellurazole (Example 18) (0.81 g, 0.0033 mole) was dissolved in dichloromethane (30 ml). A solution in carbon tetrachloride (25 ml) of 2-propyn-1-yl trifluoromethanesulfonate, prepared as described above, (0.004 mole) was placed in a dropping funnel and added at room temperature under a nitrogen atmosphere to the benzotellurazole solution. The mixture was stirred for about 20 hours after the addition was complete, forming a white solid, which was isolated by filtration, washed with dichloromethane, and dried at room temperature under vacuum. Yield 0.60 g (42% of theory), m.p. 150°-152° C. The infrared, nuclear magnetic resonance and mass spectra were consistent with the structural formula.

1. customwas placed in a dropping funnel
2. additionafter the addition
3. customforming a white solid
4. customwhich was isolated by filtration
5. washwashed with dichloromethane
6. customdried at room temperature under vacuum