3897460

Information

• Patent Grant
• 3897460

• References
• Source

• Patent Number

  3,897,460

• Date Filed

  Not available

• Date Issued

  Tuesday, July 29, 1975
  49 years ago

• CPC

  • C07C309/00 - Sulfonic acids Halides, esters, or anhydrides thereof
  • C07C45/292 - with chromium derivatives
  • C07C45/515 - the singly bound functional group being an acetalised, ketalised hemi-acetalised, or hemi-ketalised hydroxyl group
  • C07C45/673 - by change of size of the carbon skeleton
  • C07C45/676 - by elimination of carboxyl groups
  • C07C45/75 - Reactions with formaldehyde
  • C07C61/13 - having two rings
  • C07C62/26 - containing singly bound oxygen-containing groups
  • C07C62/38 - containing keto groups
  • C07D317/26 - Radicals substituted by doubly bound oxygen or sulfur atoms or by two such atoms singly bound to the same carbon atom
  • C07D317/30 - Radicals substituted by carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen
  • C07C2103/16 - (Hydrogenated) benz[e]indenes

• US Classifications

  • 549 - Organic compounds
  • 552 - Organic compounds
  • 558 - Organic compounds
  • 560 - Organic compounds
  • 562 - Organic compounds
  • 568 - Organic compounds