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IPC Main Group
C07C 231/00

Preparation of carboxylic acid amides

Introduced: January 1990

Last revised: January 2006

Classification Context

Section:
CHEMISTRY; METALLURGY
Class:
ORGANIC CHEMISTRY
Subclass:
ACYCLIC OR CARBOCYCLIC COMPOUNDS

Related Keywords

ESTERS of amino carboxylic acids

9 direct subcodes

Child Classifications

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  • C07C 231/02 from carboxylic acids or from esters, anhydrides, or halides thereof by reaction with ammonia or amines
  • C07C 231/04 from ketenes by reaction with ammonia or amines
  • C07C 231/06 from nitriles by transformation of cyano groups into carboxamide groups
  • C07C 231/08 from amides by reaction at nitrogen atoms of carboxamide groups
  • C07C 231/1 from compounds not provided for in groups
  • C07C 231/12 by reactions not involving the formation of carboxamide groups
  • C07C 231/14 by formation of carboxamide groups together with reactions not involving the carboxamide groups

Top Applicants

Top 10 applicants by patent filingsfor class C07, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 12,697
  2. ROCHE CH 11,347
  3. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 11,024
  4. NOVARTIS CH 9,356
  5. BASF (BADISCHE ANILIN & SODA FABRIK) DE 8,531
  6. BRISTOL-MYERS SQUIBB COMPANY US 7,320
  7. LG CHEM KR 7,245
  8. REGENERON PHARMACEUTICALS US 6,816
  9. HARVARD UNIVERSITY US 6,190
  10. GENENTECH US 5,922