Table 1.
1 | 1: (KF/Al2O3) (mol/mol) | Method Aa | Method Ba | ||||
---|---|---|---|---|---|---|---|
Yieldb (Conv.,b time,c Pd) | Selectivityb (%) | Yieldb (Conv.,b time,c∗ tempf) | Selectivityb (%) | ||||
cis | trans | cis | trans | ||||
1a | 2 : 4 | 96(100, 11, 630) | 15 | 85 | 99 (100, 2.5, 140) | 10 | 90 |
1b | 2 : 10 | 94 (100, 13, 400) | 14 | 86 | 96 (100, 3.5, 150) | 13 | 87 |
1c | 2 : 4 | 96 (99, 15, 400) | 16 | 83 | 99 (100, 2.5, 140) | 13 | 87 |
1d | 2 : 8 | 96 (96, 6, 630) | 19 | 77 | 98 (100, 2.5, 150) | 12 | 88 |
1e | 2 : 40 | 97 (97, 9, 80) a∗ | 6 | 91 | 77 (78, 1.3, 203)a∗∗ | 11 | 67 |
a Method A: The reaction was assisted by microwave irradiation under solvent-free conditions; Method B: The reaction was assisted by heating in an oil bath under solvent-free conditions; a∗ Method A1: The reaction was assisted by microwave irradiation under heterogeneous conditions; a∗∗ Method B1: The reaction was assisted by heating in an oil bath under heterogeneous conditions; b Yield, Conv. (conversion yield), and Selectivity were determined by GC/MS; c time = reaction time in minutes; c∗ time = reaction time in hours; d P = power of microwave oven (W); f temp = oil bath temperature (°C).