3880884

Information

• Patent Grant
• 3880884

• References
• Source

• Patent Number

  3,880,884

• Date Filed

  Not available

• Date Issued

  Tuesday, April 29, 1975
  49 years ago

• CPC

  • C07D317/72 - spiro-condensed with carbocyclic rings
  • C07C59/215 - containing singly bound oxygen containing groups
  • C07C59/68 - the oxygen atom of the ether group being bound to a non-condensed six-membered aromatic ring
  • C07D311/94 - condensed with rings other than six-membered
  • C07D317/20 - Free hydroxyl or mercaptan
  • C07F9/653 - Five-membered rings
  • C07F9/655 - having oxygen atoms, with or without sulfur, selenium, or tellurium atoms, as the only ring hetero atoms
  • C07F9/65586 - at least one of the hetero rings does not contain nitrogen as ring hetero atom
  • C07C2103/16 - (Hydrogenated) benz[e]indenes

• US Classifications

  • 549 - Organic compounds
  • 546 - Organic compounds
  • 548 - Organic compounds
  • 552 - Organic compounds
  • 558 - Organic compounds
  • 560 - Organic compounds
  • 562 - Organic compounds
  • 568 - Organic compounds
  • 987 - Organic compounds containing a bi, sb, as, or p atom or containing a metal atom of the 6th to 8th group of the periodic system