Patent · US Expired

Polycyclic compounds

US5968252A · kind A · utility

0Cited by
4References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 24, 1998
Grant dateOct 19, 1999
Priority date
Expiry dateMar 24, 2018

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09B57/00
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Compounds of formula ##STR1## wherein R and R' are each independently of the other hydrogen, C.sub.1 -C.sub.18 alkyl, COR.sub.1, COR.sub.2 or COOR.sub.1, PA1 X and X' are each independently of the other hydrogen, halogen, OH, NH.sub.2, COOH, C.sub.1 -C.sub.18 -alkyl, isocyclic or heterocyclic aromatic radicals, OR.sub.3, OCOR.sub.3, OCOR.sub.4, OCOR.sub.3, NHR.sub.3, N(R.sub.3).sub.2, NHCOR.sub.3, NHCOR.sub.4 or NHCOOR.sub.3, PA1 Y and Y' are each independently of the other hydrogen, halogen, OH, NH.sub.2, nitro, cyano, C.sub.1 -C.sub.18 alkyl, isocyclic or heterocyclic aromatic radicals, COR.sub.5, COR.sub.6, COOR.sub.5, COOR.sub.6, CONH.sub.2, SO.sub.2 R.sub.5, SO.sub.2 R.sub.6, SO.sub.2 NH.sub.2, SO.sub.3 H, PO(OR.sub.5).sub.2 or PO(OH).sub.2, and PA1 Z and Z' are each independently of the other hydrogen, halogen, OH, NH.sub.2, COOH, cyano, C.sub.1 -C.sub.18 alkyl, isocyclic or heterocyclic aromatic radicals, OR.sub.7, OR.sub.8, OCOR.sub.7, OCOR.sub.8, OCOOR.sub.7, NHR.sub.7, N(R.sub.7).sub.2, NHR.sub.8, CONH.sub.2, NHCOR.sub.7, NHCOR.sub.8 or COOR.sub.7, PA1 R.sub.1, R.sub.3, R.sub.5 and R.sub.7 are each independently of one another C.sub.1 -C.sub.18 alkyl, and R.sub.2, R.sub.4…

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