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Yields of products in the reaction of 1 with symmetric diacetylenic ketones.
| Ketone | R | Product | Yield [%] | δ(31P), PIII [ppm] | δ(31P), PV [ppm] | 3JPP [Hz] |
|---|---|---|---|---|---|---|
| 7 | TMS | 14 | 7 | 168.2 | 6.4 | 59 |
| 8 | TES | 15 | 57 | 167.5 | 6.8 | 63 |
| 9 | TIPS | 13 | 35 | 9.7 | – | – |
| 10 | Ph | 16 | 38 | 38.4 | 13.6 | 38 |
| 11 | thiophene | 17 | 50 | 37.2 | 13.4 | 32 |
