Trityl chloride → HCID 71502325, compound

Participants

Reaction Conditions

Reaction Steps

D-Cysteine (2.36 g, 19.48 mmol) was suspended in THF (40 mL) and cooled to 0° C. Borane-tetrahydrofuran complex (1 M in THF, 78 mL, 78 mmol) was added over 20 mins and the mixture was stirred at RT for 6 hours. The reaction was quenched with DMF (7 mL) and stirred for 25 mins. Trityl chloride (5.97 g, 21.43 mmol) was added and the mixture stirred for a further 16 hours. The reaction mixture was evaporated under vacuum. The residue was partitioned between DCM and water and the phases separated. The organic phase was passed through a hydrophobic frit and evaporated under vacuum. Purification by chromatography on silica, eluting with 50% EtOAc/hexane, EtOAc, 10% MeOH/EtOAc and 20% MeOH/EtOAc gave the title compound.

Provenance & Evidence