3390192

Information

• Patent Grant
• 3390192

• References
• Source

• Patent Number

  3,390,192

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1968
  56 years ago

• CPC

  • C07C50/22 - the quinoid structure being part of a condensed ring system containing four or more rings
  • C07C1/22 - by reduction
  • C07C5/3337 - of the platinum group
  • C07C5/367 - Formation of an aromatic six-membered ring from an existing six-membered ring
  • C07C13/64 - with a bridged ring system
  • C07C13/66 - the condensed ring system contains only four rings
  • C07C13/70 - with a condensed ring system consisting of at least two, mutually uncondensed aromatic ring systems, linked by an annular structure formed by carbon chains on non-adjacent positions of the aromatic ring
  • C07C41/16 - by reaction of esters of mineral or organic acids with hydroxy or O-metal groups
  • C07C41/22 - by introduction of halogens by substitution of halogen atoms by other halogen atoms
  • C07C41/30 - by increasing the number of carbon atoms
  • C07C49/617 - a keto group being part of a condensed ring system
  • C07C2103/50 - (Hydrogenated) pyrenes
  • C07C2103/90 - containing more than four rings

• US Classifications

  • 585 - Chemistry of hydrocarbon compounds
  • 252 - Compositions