Search results
Results from the WOW.Com Content Network
Base extraction is achieved by processing the raw material with alkaline solutions and extracting the alkaloid bases with organic solvents, such as 1,2-dichloroethane, chloroform, diethyl ether or benzene.
Ibogaine is a psychoactive indole alkaloid obtained either by extraction from plants in the family Apocynaceae such as Tabernanthe iboga, Voacanga africana, and Tabernaemontana undulata or by semi-synthesis from the precursor compound voacangine, another plant alkaloid. [1] [2] The total synthesis of ibogaine was described in 1956. [5]
The field-dried leaves, stalk, and seed pod are then used in commercial manufacture of morphine or other poppy-alkaloid derived drugs, by first processing the material, separating the seeds, and then making concentrate of poppy straw [2] where no extraction using the traditional methods of latex extraction has been made. [3]
0.2-1% alkaloids from tops, 0.14-0.29% from flowers; consisted mostly of tryptamine-like alkaloids (tryptamine itself found in some flowers), with small amount of phenethylamine. [1] [40] [45] Some strains have been found to contain up to 0.2% DMT in unspecified parts.
Coca-Cola used coca leaf extract in its products from 1885 until about 1903, when it began using decocainized leaf extract. [ 9 ] [ 10 ] [ 11 ] Extraction of cocaine from coca requires several solvents and a chemical process known as an acid–base extraction , which can fairly easily extract the alkaloids from the plant.
Some alkaloids are more stable as ionic salts than as free base. The salts usually exhibit greater water solubility. Common counterions include chloride, bromide, sulfate, phosphate, nitrate, acetate, oxalate, citrate, and tartrate. Ammonium salts formed from the acid–base reaction with hydrochloric acid are known as hydrochlorides.
Acid–base extraction is a subclass of liquid–liquid extractions and involves the separation of chemical species from other acidic or basic compounds. [1] It is typically performed during the work-up step following a chemical synthesis to purify crude compounds [ 2 ] and results in the product being largely free of acidic or basic impurities.
In organic chemistry, Keller's reagent is a mixture of anhydrous (glacial) acetic acid, concentrated sulfuric acid, and small amounts of ferric chloride, used to detect alkaloids. Keller's reagent can also be used to detect other kinds of alkaloids via reactions in which it produces products with a wide range of colors.