Codeine phosphate to Heroin
Hello. Cold Water Extraction of codeine from over-the-counter analgesics then you have to get Morphine via synthesis from codeine and acilate Morphine by Acetic anhydride.
- By hockey34
G.Pattonisn't that morphine synthesis too low yielding?
got this synth from erowid which is basically the same, with it saying a yield of 22% was to be expected:
Using Pyridine HCl1,2
A mixture of 1.00 g. of codeine and 3 g. of pyridine hydrochloride was placed in a bath at 220°C and heated for six minutes in a nitrogen atmosphere, after which the reaction mixture was immediately cooled and dissolved in 20 ml. of water, basified with 10 ml. of 4 N sodium hydroxide, and the non-phenolic material was removed by extraction with four 15-ml. portions of chloroform. The combined chloroform extracts were washed with 10 ml. of 0.5 N sodium hydroxide and 10 ml. of water, and the aqueous phase, after adding the washings, was adjusted to pH 9 and cooled thoroughly to precipitate phenolic material. After filtering and drying, this phenolic material was digested with 75 ml of methanol, the mixture was filtered hot and the filtrate was chromatographed on an alumina (Merck) column (120x11 mm) using 700 ml of methanol as eluent. The residue after evaporation of the methanol was dissolved in 10 ml. of 0.2 N sodium hydroxide, filtered, and the filtrate was adjusted to pH 9, precipitating the crude morphine. After drying, this crude morphine was sublimed (180-190°C (0.1 mm)), and the sublimate was crystallized from absolute ethanol. There was thus obtained a total of 210 mg. (22%) of morphine, mp 254-255°C.
got this synth from erowid which is basically the same, with it saying a yield of 22% was to be expected:
Using Pyridine HCl1,2
A mixture of 1.00 g. of codeine and 3 g. of pyridine hydrochloride was placed in a bath at 220°C and heated for six minutes in a nitrogen atmosphere, after which the reaction mixture was immediately cooled and dissolved in 20 ml. of water, basified with 10 ml. of 4 N sodium hydroxide, and the non-phenolic material was removed by extraction with four 15-ml. portions of chloroform. The combined chloroform extracts were washed with 10 ml. of 0.5 N sodium hydroxide and 10 ml. of water, and the aqueous phase, after adding the washings, was adjusted to pH 9 and cooled thoroughly to precipitate phenolic material. After filtering and drying, this phenolic material was digested with 75 ml of methanol, the mixture was filtered hot and the filtrate was chromatographed on an alumina (Merck) column (120x11 mm) using 700 ml of methanol as eluent. The residue after evaporation of the methanol was dissolved in 10 ml. of 0.2 N sodium hydroxide, filtered, and the filtrate was adjusted to pH 9, precipitating the crude morphine. After drying, this crude morphine was sublimed (180-190°C (0.1 mm)), and the sublimate was crystallized from absolute ethanol. There was thus obtained a total of 210 mg. (22%) of morphine, mp 254-255°C.
No I don't need to do a cold water extraction, where I live I have over the counter pure codeine phosphate.
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