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Tropinone

Tropinone
Names
IUPAC name
8-Methyl-8-azabicyclo[3.2.1]octan-3-one
Other names
3-Tropinone
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
DrugBank
ECHA InfoCard 100.007.756 Edit this at Wikidata
UNII
  • InChI=1S/C8H13NO/c1-9-6-2-3-7(9)5-8(10)4-6/h6-7H,2-5H2,1H3/t6-,7+ checkY
    Key: QQXLDOJGLXJCSE-KNVOCYPGSA-N checkY
  • InChI=1S/C8H13NO/c1-9-6-2-3-7(9)5-8(10)4-6/h6-7H,2-5H2,1H3/t6-,7+
    Key: QQXLDOJGLXJCSE-KNVOCYPGBG
  • Key: QQXLDOJGLXJCSE-KNVOCYPGSA-N
  • CN1[C@@H]2CC[C@H]1CC(=O)C2
Properties
C8H13NO
Molar mass 139.195 g/mol
Appearance Brown solid
Melting point 42.5 °C (108.5 °F; 315.6 K)
Boiling point (decomposes)
Hazards
GHS labelling:
GHS05: CorrosiveGHS07: Exclamation mark[1]
Danger
H302, H314[1]
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
1
0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Tropinone is an alkaloid, famously synthesised in 1917 by Robert Robinson as a synthetic precursor to atropine, a scarce commodity during World War I.[2][3] Tropinone and the alkaloids cocaine and atropine all share the same tropane core structure. Its corresponding conjugate acid at pH 7.3 major species is known as tropiniumone.[4]

  1. ^ a b "Tropinone". Substance Information. ECHA.
  2. ^ Robinson R (1917). "LXIII. A Synthesis of Tropinone". Journal of the Chemical Society, Transactions. 111: 762–768. doi:10.1039/CT9171100762.
  3. ^ Nicolaou KC, Vourloumis D, Winssinger N, Baran PS (2000). "The Art and Science of Total Synthesis at the Dawn of the Twenty-First Century". Angewandte Chemie International Edition. 39 (1): 44–122. doi:10.1002/(SICI)1521-3773(20000103)39:1<44::AID-ANIE44>3.0.CO;2-L. PMID 10649349.
  4. ^ Chemical Entities of Biological Interest Identification code: ChEBI:57851 "tropiniumone"

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