Patent · US Expired

Method for preparing benzo-(1,3,4)-benzotriazepines

US4144233A · kind A · utility

3Cited by
3References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 25, 1977
Grant dateMar 13, 1979
Priority date—
Expiry dateJul 25, 1997

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D487/04
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Novel triazolo- or imidazo-benzotriazepines are prepared from 1,3,4-benzotriazepine-2-thiones which in turn are prepared from a 2-aminobenzophenone.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.