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1. WO1999031081 - PH SENSITIVE PHOTOCHROMIC DYES

Publication Number WO/1999/031081
Publication Date 24.06.1999
International Application No. PCT/GB1998/003681
International Filing Date 10.12.1998
Chapter 2 Demand Filed 08.07.1999
IPC
C07D 311/92 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
311Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
02ortho- or peri-condensed with carbocyclic rings or ring systems
78Ring systems having three or more relevant rings
92Naphthopyrans; Hydrogenated naphthopyrans
C07D 405/04 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
405Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
02containing two hetero rings
04directly linked by a ring-member-to-ring- member bond
C09K 9/02 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
9Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy
02Organic tenebrescent materials
CPC
C07D 311/92
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
311Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
02ortho- or peri-condensed with carbocyclic rings or ring systems
78Ring systems having three or more relevant rings
92Naphthopyrans; Hydrogenated naphthopyrans
C07D 405/04
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
405Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
02containing two hetero rings
04directly linked by a ring-member-to-ring-member bond
C09K 9/02
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
9Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy
02Organic tenebrescent materials
Applicants
  • JAMES ROBINSON LIMITED [GB]/[GB] (AllExceptUS)
  • CLARKE, David, A. [GB]/[GB] (UsOnly)
  • HERON, Bernard, Mark [GB]/[GB] (UsOnly)
  • GABBUTT, Christopher, David [GB]/[GB] (UsOnly)
  • HEPWORTH, John, David [GB]/[GB] (UsOnly)
  • PARTINGTON, Steven, Michael [GB]/[GB] (UsOnly)
  • CORNS, Stephen, Nigel [GB]/[GB] (UsOnly)
Inventors
  • CLARKE, David, A.
  • HERON, Bernard, Mark
  • GABBUTT, Christopher, David
  • HEPWORTH, John, David
  • PARTINGTON, Steven, Michael
  • CORNS, Stephen, Nigel
Agents
  • WAIN, Christopher, Paul
Priority Data
9726361.012.12.1997GB
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PH SENSITIVE PHOTOCHROMIC DYES
(FR) COLORANTS PHOTOCHROMIQUES SENSIBLES AU PH
Abstract
(EN) Naphthopyrans of formula (I) or (II) reversibly change their optical properties (colour, induced optical density and/or colourability) with changes of pH. In the formulae, R1 and R2 are hydrogen or certain hydrocarbyl or heterocyclic groups, R3 is an amino functional group or certain oxygen, sulphur or phosphorus groups; and R4 may be certain C1-C20 linear or branched alkoxy or alkyl (substituent) groups or is chosen from R1, R2 or R3; and each n is 0 or 1 to 6, the total of all n's being no more than 6.
(FR) Les naphtopyranes de formule I ou II changent réversiblement leurs propriétés optiques (couleur, densité optique induite et/ou aptitude à être coloré) avec des changements de pH. Dans les formules, R1 et R2 représentent des hydrogènes ou certains groupes hydrocarbyles ou hétérocycliques, R3 est un groupe amino fonctionnel ou certains groupes oxygène, soufre ou phosphore; et R4 peut représenter certains groupes (substituants) C1-C20 ou alkoxy ou alkyle linéaires ou ramifiés ou est choisi à partir de R1, R2 ou R3; et chaque n est 0 ou 1 à 6, le total de tous les n ne dépassant pas 6.
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