2589686

Information

• Patent Grant
• 2589686

• References
• Source

• Patent Number

  2,589,686

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1952
  73 years ago

• CPC

  • C07D303/40 - by ester radicals
  • C07C37/002 - by transformation of a functional group
  • C07C45/46 - Friedel-Crafts reactions
  • C07C45/62 - by hydrogenation of carbon-to-carbon double or triple bonds
  • C07C45/84 - by azeotropic distillation
  • C07C45/86 - Use of additives
  • C07C46/06 - of at least one hydroxy group on a six-membered aromatic ring
  • C07C49/83 - polycyclic
  • C07C49/84 - containing ether groups, groups, groups, or groups
  • C07C50/10 - the quinoid structure being part of a condensed ring system containing two rings
  • C07C50/32 - the quinoid structure being part of a condensed ring system having two rings
  • C07C51/373 - by introduction of functional groups containing oxygen only in doubly bound form
  • C07C66/00 - Quinone carboxylic acids

• US Classifications

  • 552 - Organic compounds
  • 549 - Organic compounds
  • 554 - Organic compounds
  • 568 - Organic compounds