3819615

Information

• Patent Grant
• 3819615

• References
• Source

• Patent Number

  3,819,615

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1974
  50 years ago

• CPC

  • C07D263/64 - linked in positions 2 and 2' by chains containing six-membered aromatic rings or ring systems containing such rings
  • C07C15/54 - containing a group with formula
  • C07D249/20 - with aryl radicals directly attached in position 2
  • C07D249/24 - with stilbene radicals attached in position 2
  • C07D307/79 - with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals directly attached to carbon atoms of the hetero ring
  • C07D307/92 - Naphthofurans Hydrogenated naphthofurans
  • C07D333/54 - with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
  • C07D333/74 - Naphthothiophenes

• US Classifications

  • 549 - Organic compounds
  • 252 - Compositions
  • 548 - Organic compounds
  • 568 - Organic compounds
  • 570 - Organic compounds
  • 585 - Chemistry of hydrocarbon compounds