Semicarbazide hydrochloride → Dimethyl 3-(2-carbamoylhydrazinylidene)-2,2-dimethylbutanedioate

Participants

Reaction Steps

10 g (90 mmol) of semicarbazide hydrochloride, 15.5 g (82 mmol) of dimethyl 2,2-dimethyl-3-oxobutanedioate and 8.1 g (82 mmol) of sodium acetate were stirred in 135 ml of water at RT overnight and left to stand for two days. The mixture was cooled with ice-water, and the colourless precipitate was filtered off, washed with a little water and dried.

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