Dicyclohexylcarbodiimide → Fmoc-Phe-OSu

Participants

Reaction Steps

To a suspension of Fmoc-Phe (1.9442 g, 5.0186 mmol, 1.0 eq) and N-hydroxysuccinimide (0.6095 g, 5.2959 mmol, 1.06 eq) in methylene chloride (50 ml) cooled in an ice bath, was added DCC (1.0880 g, 5.2731 mmol, 1.05 eq). The mixture was stirred at room temperature overnight. The resulting DCU was removed by filtration and the filtrate was condensed and dried in vacuo to give 2.7664 g of white foam.

Provenance & Evidence