Triptycene

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Rhadamante (talk | contribs) at 01:51, 10 September 2012 (better link). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Triptycene
Skeletal formula
Space-filling model
Identifiers
3D model (JSmol)
ECHA InfoCard 100.006.837 Edit this at Wikidata
  • C12=CC=CC=C1C3C5=C
    (C=CC=C5)C2C4=C3C=CC=C4
Properties
C20H14
Molar mass 254.33 g/mol
Melting point 252 - 256 °C
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

Triptycenes are a class of aromatic hydrocarbons. The parent compound triptycene is the Diels-Alder reaction product of anthracene and benzyne. The compound has a paddlewheel configuration with D3h symmetry. Barrelenes are conceptually related compounds. The hydrocarbon framework is very rigid and triptycene and triptycene derivatives such as triptycene quinones [1] are therefore incorporated in many organic compounds as a molecular scaffold for instance in molecular motors [2] or as a ligand for example in this hydrocyanation:[3][4]

Use of trypticene in catalysts ligands

References

  1. ^ Triptycene quinones in synthesis: preparation of triptycene bis-cyclopentenedione Spyros Spyroudis and Nikoletta Xanthopoulou Arkivoc 2003 (vi) 95-105 Online article
  2. ^ Kelly TR, De Silva H, Silva RA (1999). "Unidirectional rotary motion in a molecular system". Nature. 401 (6749): 150–2. doi:10.1038/43639. PMID 10490021. Retrieved 2008-07-16. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  3. ^ Bini L, Müller C, Wilting J, von Chrzanowski L, Spek AL, Vogt D (2007). "Highly selective hydrocyanation of butadiene toward 3-pentenenitrile". J. Am. Chem. Soc. 129 (42): 12622–3. doi:10.1021/ja074922e. PMID 17902667. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  4. ^ In this reaction the substrate is butadiene,the reagent acetonecyanohydrine, the catalyst Ni(cod)2 and the ligand a bidentate organophosphine with a large bite angle on a trypticene scaffold

External links