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XXII. Researches into the chemical constitution of narcotine, and of its products of decomposition.—Part II

1867; Royal Society; Volume: 157; Linguagem: Inglês

10.1098/rstl.1867.0022

2053-9223

Augustus Matthiessen, George Carey Foster,

Plant-based Medicinal Research

About four years ago we had the honour of communicating to the Royal Society a paper entitled “Researches into the Chemical Constitution of Narcotine, and of its Products of Decomposition”*, and we now desire to lay before the Society some results obtained in the further prosecution of the same inquiry. We are fully aware that our present communication is in many respects very incomplete, but as we have no prospect of being able to resume the investigation conjointly, we venture to present the results already obtained as they are. In the previous paper it was shown that narcotine and its principal derivatives, opianic acid, meconin, hemipinic acid, and cotarnine, are decomposed when heated with hydro­chloric acid or hydriodic acid into iodide or chloride of methyl, and one or more other products. With the exception, however, of those obtained from hemipinic acid and cotarnine these second products had not been examined: the present memoir relates principally to the further study of these reactions.