Diisopropylethylamine → HCID 67094887, compound

Participants

Reaction Steps

1.18 g (6.5 mmol) 2-amino-6-nitrobenzoic acid, 1.0 g (4.6 mmol) D,L-phenylalanine-methylester hydrochloride, 4.05 ml (23.2 mmol) N-ethyldiisopropylamine are combined with 2.5 ml of tetrahydrofuran. 1.71 g (5.1 mmol) O-(benzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium-tetrafluoroborate are added to this reaction mixture and it is heated for 12 h to 50° C. Then the solvent is eliminated in vacuo and the crude product is purified by chromatography. The carrier used is silica gel and the eluant used is a mixture of cyclohexane:ethyl acetate (50:50).

Provenance & Evidence