Patent · US Expired

Benzopyrano[6,7,8-i,j]quinolizine-11-one lasing dyes and intermediates for their preparation

US4736032A · kind A · utility

8Cited by
2References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 30, 1985
Grant dateApr 5, 1988
Priority date—
Expiry dateDec 30, 2005

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D491/16
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Novel benzopyrano[6,7,8-i,j]quinolizine-11-one lasing dyes and intermediates for their preparation are disclosed.

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