Potassium Carbonate → Ethyl (Z)-alpha-((2-(tert-butoxy)-1,1-dimethyl-2-oxoethoxy)imino)-2-(tritylamino)thiazol-4-acetate

Participants

Reaction Steps

To ethyl (Z)-2-(hydroxyimino)-2-[2-(triphenylmethyl)aminothiazol-4-yl]acetate (46 g) were added potassium carbonate (27.6 g), tert-butyl-2-bromo-2-methylpropionate(24.1 g) and dimethylsulfoxide (300 ml), and then the solution was stirred for 6 hours at room temperature. Afterwards distilled water (100 ml) was added therein, the solution was stirred again for an hour. The precipitates were filtered, washed with distilled water(500 ml), and dried under reduced pressure to give the above-indicated compound(45.1 g) as a white solid.

Provenance & Evidence