Ethanol → Aminolevulinic acid phosphate

참여 물질

반응 단계

A 40 g (239 mmol) portion of δ-aminolevulinic acid hydrochloride and 18 ml (263 mmol) of 85% phosphoric acid were dissolved in 120 ml of purified water, and 25.4 g mmol) of triethylamine was added dropwise thereto while stirring on an ice bath. After completion of the dropwise addition and subsequent stirring at room temperature for 10 minutes, 1.6 L of ethanol was added thereto and stirred. The thus precipitated precipitate was recovered by suction filtration and dried at room temperature for 16 hours under a reduced pressure. A 51 g (224 mmol) portion of δ-aminolevulinic acid phosphate was obtained at a yield of 93 mol %.

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