Table 8. Reaction of Methyl Propiolate with 2-Napthalenethiol Catalyzed by Various Inorganic Solids and Triethylamine in Diethyl Ether91.
| catalyst | conversion (%) | E/Z |
|---|---|---|
| none | 19 | 50/50 |
| Al2O3 | 96 | 10/90 |
| SiO2 | 20 | 45/55 |
| NEt3 | 85 | 58/42 |
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