Research Article

Efficient Electrochemical N-Alkylation of N-Boc-Protected 4-Aminopyridines: Towards New Biologically Active Compounds

Table 2

Alkylation reaction of 4-alkylaminopyridines with -BuOK in DMSOa.

EntryStarting 2R′–X3, yieldb

1621592.table.002a1621592.table.002a2621592.table.002a3
2621592.table.002b1621592.table.002b2621592.table.002b3
3621592.table.002c1621592.table.002c2621592.table.002c3
4621592.table.002d1621592.table.002d2621592.table.002d3

1 mmol of 2 in 2 mL of anhydrous DMSO, at rt, under N2. Then 1.5 mmol of -BuOK were added, followed by 1 mmol of halide after 20 min. The reaction was kept under stirring for 4 h. bAll the yields are in isolated products.