3-Bromo-4-(4-chlorophenyl)-4-oxobutanoic acid → HCID 13059237, compound

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Reaction Steps

A solution of 3-bromo-3-(p-chlorobenzoyl) propionic acid (7.29 g, 0.025 moles) in methanol (40 ml) was mixed with a solution of 1,5-dimethyl-3,4,5,6-tetrahydro-s-triazin-2(1H)thione (3.625 g, 0.025 mole) in the same solvent (100 ml). After 2 hours at room temperature the solvent was evaporated to give a foam which was crystallised from isopropanol to give 7-carboxymethyl-6-(p-chlorophenyl)-1,3-dimethyl-6-hydroxy-3,4,6,7-tetrahydro-2H-thiazolo[3,2-a]-s-triazinium bromide as a colourless solid (6.0 g), m.p. 160°-161° C. (decomposition).

Provenance & Evidence