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CPC Subgroup Additional Only
B01J 2231/324

Cyclisations via conversion of C-C multiple to single or less multiple bonds, e.g. cycloadditions

Full Title

Catalytic reactions performed with catalysts classified in B01J31/00 > Addition reactions at carbon centres, i.e. to either C-C or C-X multiple bonds > Addition reactions to C=C or C-C triple bonds > Cyclisations via conversion of C-C multiple to single or less multiple bonds, e.g. cycloadditions

4 direct subcodes

Child Classifications

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  • B01J 2231/325 Cyclopropanations
  • B01J 2231/326 Diels-Alder or other [4+2] cycloadditions, e.g. hetero-analogues
  • B01J 2231/327 Dipolar cycloadditions
  • B01J 2231/328 Cycloadditions involving more than 2 components or moieties, e.g. intra-/intermolecualar [2+2+2] or [2+2+1], e.g. Pauson-Khand type

Top Applicants

Top 10 applicants by patent filingsfor class B01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 10,345
  2. CHINESE ACADEMY OF SCIENCES 8,352
  3. BASF (BADISCHE ANILIN & SODA FABRIK) DE 5,134
  4. LG CHEM KR 4,290
  5. SAUDI ARABIAN OIL COMPANY SA 3,444
  6. IFPEN (IFP ENERGIES NOUVELLES) FR 3,417
  7. DOW GLOBAL TECHNOLOGIES US 3,195
  8. MANN + HUMMEL DE 2,822
  9. JOHNSON MATTHEY GB 2,802
  10. UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 2,737