Red-light-mediated Barton decarboxylative functionalization.
| ||||
|---|---|---|---|---|
| Entry | R | Product | Conditions | Yield |
| 1 | Cl | 4a | Cl3CCCl3 | 73% |
| 2 | Br | 4b | CBrCl3, toluene | 55% |
| 3 | I | 4c | CH2I2, toluene | 70% |
| 4 | OH | 4d | O2, t-BuSH, EtOH then P(OMe)3 | 75% |
| 5 |
|
4e | Ph3CSNO, CH2Cl2/toluene | 61% |
| 6 |
|
4f | DEAD, TTMSS, toluene | 57% |
| 7 | SPh | 4g | PhSSPh, DMSO | 84% |
| 8 | SePh | 4h | PhSeSePh, CH2Cl2 | 91% |
| 9 | Bpin | 4i | B2cat2, DMF then pinacol, Et3N | 67% |