Comparison of the space-time yield (STY) for three dipeptides synthesised by reactive extrusion, ball-milling and solution phase synthesis199.
Dipeptide | STY (g per cm3 per day−1) | ||
---|---|---|---|
Reactive extrusion | Ball-milling | Solution-phasea | |
Boc-Trp-Gly-OMe | 48.0 | 2.6 | 1.8 |
Boc-Trp-Phe-OMe | 37.0 | 2.1 | 1.1 |
Boc-Asp(OBn)-Phe-OMe | 471.2 | 2.2 | 4.9 (0.2)b |
Reaction performed with Et3N as base and DMF as solvent.
Reaction performed with NaHCO3 as base and acetone as solvent.