3705918

Information

• Patent Grant
• 3705918

• References
• Source

• Patent Number

  3,705,918

• Date Filed

  Not available

• Date Issued

  Tuesday, December 12, 1972
  52 years ago

• CPC

  • C07C49/798 - containing rings other than six-membered aromatic rings
  • C07C29/14 - of a -CHO group
  • C07C37/115 - using acetals
  • C07C41/16 - by reaction of esters of mineral or organic acids with hydroxy or O-metal groups
  • C07C41/18 - by reactions not forming ether-oxygen bonds
  • C07C41/22 - by introduction of halogens by substitution of halogen atoms by other halogen atoms
  • C07C41/30 - by increasing the number of carbon atoms
  • C07C45/00 - Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms Preparation of chelates of such compounds
  • C07C45/46 - Friedel-Crafts reactions
  • C07C47/445 - containing a condensed ring system
  • C07C2103/34 - (Hydrogenated) benzoheptalenes
  • C07C2103/38 - containing rings with at least nine members
  • C07C2103/40 - containing four condensed rings
  • C07C2103/50 - (Hydrogenated) pyrenes

• US Classifications

  • 558 - Organic compounds
  • 252 - Compositions
  • 430 - Radiation imagery chemistry: process, composition, or product thereof