Pseudopelletierine
Pseudopelletierine is the main alkaloid derived from the root-bark of the pomegranate tree (Punica granatum), along with at least three other alkaloids: pelletierine, isopelletierine, and methylpelletierine (C9H17ON), which yield 1.8, 0.52, 0.01, and 0.20 grams per kilogram of raw bark.
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| Names | |
|---|---|
| IUPAC name
9-Methyl-9-azabicyclo[3.3.1]nonan-3-one | |
| Other names
Pseudopunicine; Granatonine; Pseudopelletrierin; Granatan-3-one; Pseudopelletierin; psi-Pelletierine; 9-Methyl-3-granatanone | |
| Identifiers | |
3D model (JSmol) |
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| ChEBI | |
| ECHA InfoCard | 100.008.202 |
PubChem CID |
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| UNII | |
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| Properties | |
| C9H15NO | |
| Molar mass | 153.225 g·mol−1 |
| Appearance | Colorless (yellows on exposure) |
| Melting point | 54 °C (129 °F; 327 K) |
| Boiling point | Sublimes at 40 °C (0.3 mmHg) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
It is a homolog of tropinone, and can be synthesized in a manner analogous to the classical Robinson tropinone synthesis, using glutaraldehyde (rather than succinaldehyde), acetonedicarboxylic acid, and methylammonium chloride.[1] It was the starting material for Willstätter's 10-step synthesis of cyclooctatetraene, which was achieved after oxidation and several Hoffman elimination steps.
References
- Arthur C. Cope; Hugh L. Dryden Jr.; Charles F. Howell (1957). "Pseudopelletierine". Organic Syntheses. 37: 73. doi:10.15227/orgsyn.037.0073.
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