IN170732B - - Google Patents

Info

Publication number
IN170732B
IN170732B IN427/DEL/87A IN427DE1987A IN170732B IN 170732 B IN170732 B IN 170732B IN 427DE1987 A IN427DE1987 A IN 427DE1987A IN 170732 B IN170732 B IN 170732B
Authority
IN
India
Application number
IN427/DEL/87A
Other languages
English (en)
Inventor
Harry George Heller
Stephen Nigel Oliver
John Whittall
Ian Tomlinson
Original Assignee
Plessey Co Plc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Plessey Co Plc filed Critical Plessey Co Plc
Publication of IN170732B publication Critical patent/IN170732B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/96—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings spiro-condensed with carbocyclic rings or ring systems
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/15—Heterocyclic compounds having oxygen in the ring
    • C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
    • C08K5/1545—Six-membered rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Pyrane Compounds (AREA)
  • Optical Filters (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Eyeglasses (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
IN427/DEL/87A 1986-05-15 1987-05-15 IN170732B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868611837A GB8611837D0 (en) 1986-05-15 1986-05-15 Photochromic spiropyran compounds

Publications (1)

Publication Number Publication Date
IN170732B true IN170732B (es) 1992-05-09

Family

ID=10597906

Family Applications (1)

Application Number Title Priority Date Filing Date
IN427/DEL/87A IN170732B (es) 1986-05-15 1987-05-15

Country Status (12)

Country Link
US (1) US4826977A (es)
EP (1) EP0246114B1 (es)
JP (1) JPS6366178A (es)
KR (1) KR870011125A (es)
CN (1) CN87104184A (es)
AT (1) ATE80160T1 (es)
AU (1) AU610496B2 (es)
BR (1) BR8702511A (es)
DE (1) DE3781454T2 (es)
GB (2) GB8611837D0 (es)
IN (1) IN170732B (es)
ZA (1) ZA873457B (es)

Families Citing this family (178)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8611837D0 (en) * 1986-05-15 1986-06-25 Plessey Co Plc Photochromic spiropyran compounds
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BR8702511A (pt) 1988-02-23
GB8711511D0 (en) 1987-06-17
GB2190379B (en) 1990-05-02
DE3781454D1 (de) 1992-10-08
AU7310487A (en) 1987-11-19
GB8611837D0 (en) 1986-06-25
GB2190379A (en) 1987-11-18
EP0246114B1 (en) 1992-09-02
DE3781454T2 (de) 1993-04-15
AU610496B2 (en) 1991-05-23
KR870011125A (ko) 1987-12-21
ZA873457B (en) 1988-04-27
EP0246114A2 (en) 1987-11-19
EP0246114A3 (en) 1990-01-17
ATE80160T1 (de) 1992-09-15
JPS6366178A (ja) 1988-03-24
CN87104184A (zh) 1988-06-29
US4826977A (en) 1989-05-02

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