Table 1.
| |||||
---|---|---|---|---|---|
Entry | R1 | R2 | R3 | Sulfonamide (yield [%])[a] | Sultam (yield [%]) [a] |
1 | 4-Br | Ph | H | 3a (93) | 4a (89) |
2 | 4-Br | iPr | H | 3b (96) | 4b (87) |
3 | 4-Br | iBu | H | 3c (97) | 4c (94) |
4 | 4-Br | Bn | H | 3d (89) | 4d (83) |
5 | 4-Br | Me | Ph | 3e (92) | 4e (95) |
6 | 6-F | iBu | H | 3 f (93) | 4 f (88) |
7 | 6-F | Me | Ph | 3g (94) | 4g (92) |
8 | 4-F | iBu | H | 3h (95) | 4h (93) |
Yields of isolated product after column chromatography.