Table 1.
Entry | Starting material | Catalyst | Solvent | Yield (%)[a] |
---|---|---|---|---|
1 | 4 | Pd/C | MeOH | ND |
2 | 3 | Pd(OH)2/C | MeOH | 100 |
3 | 4 | Pd(OH)2/C | MeOH | ND |
4 | 4 | Pd(OH)2/C | MeOH/HCl(aq) | 100 |
The yield of the fully deprotected product (determined by t.l.c). ND = not detected.