Diisopropylamine → HCID 21078400, compound

Participants

Reaction Steps

The product from Stage 3 (0.22 g) in dry N,N-dimethylformamide (5 ml) containing N-(3-(dimethylaminopropyl))-N′-ethylcarbodiimide hydrochloride (0.14 g) was stirred at ambient temperature and treated dropwise with diisopropylamine (0.20 ml). The mixture was stirred at ambient temperature for 2 hours, diluted with water, extracted with diethyl ether (three times) and the organic fractions combined, washed with aqueous sodium hydrogen carbonate (twice), water (twice) and dried over magnesium sulphate. The solvent was evaporated under reduced pressure and the residual gum was fractionated by chromatography (silica; ethyl acetate) to give the required product as a colourless gum, 0.06 g.

Provenance & Evidence