IT1079147B - PHOTOCROMIC COMPOUNDS AND THEIR PREPARATION PROCESS - Google Patents

PHOTOCROMIC COMPOUNDS AND THEIR PREPARATION PROCESS

Info

Publication number
IT1079147B
IT1079147B IT2845076A IT2845076A IT1079147B IT 1079147 B IT1079147 B IT 1079147B IT 2845076 A IT2845076 A IT 2845076A IT 2845076 A IT2845076 A IT 2845076A IT 1079147 B IT1079147 B IT 1079147B
Authority
IT
Italy
Prior art keywords
photocromic
compounds
preparation process
preparation
photocromic compounds
Prior art date
Application number
IT2845076A
Other languages
Italian (it)
Original Assignee
Heller George H
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 Heller George H filed Critical Heller George H
Application granted granted Critical
Publication of IT1079147B publication Critical patent/IT1079147B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Heterocyclic Compounds Containing Sulfur Atoms (AREA)
  • Furan Compounds (AREA)
IT2845076A 1976-08-31 1976-10-18 PHOTOCROMIC COMPOUNDS AND THEIR PREPARATION PROCESS IT1079147B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71925476A 1976-08-31 1976-08-31

Publications (1)

Publication Number Publication Date
IT1079147B true IT1079147B (en) 1985-05-08

Family

ID=24889364

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2845076A IT1079147B (en) 1976-08-31 1976-10-18 PHOTOCROMIC COMPOUNDS AND THEIR PREPARATION PROCESS

Country Status (5)

Country Link
JP (1) JPS5331656A (en)
DE (1) DE2647850A1 (en)
FR (1) FR2363568A2 (en)
IT (1) IT1079147B (en)
NL (1) NL7611809A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE52511T1 (en) * 1983-09-07 1990-05-15 Plessey Co Plc PHOTOCHROMIC COMPOUNDS AND THEIR USE IN PHOTOREACTIVE LENSES.
JPS62242677A (en) * 1986-04-16 1987-10-23 Agency Of Ind Science & Technol Photochromic material
JPS649281A (en) * 1987-07-02 1989-01-12 Agency Ind Science Techn Photochromic material and optical recording medium
JPS649282A (en) * 1987-07-02 1989-01-12 Agency Ind Science Techn Photochromic material
JPH0613512B2 (en) * 1987-07-30 1994-02-23 ヤマハ株式会社 Photochromic compounds
GB8916860D0 (en) * 1989-07-24 1989-09-06 Traqson Ltd Novel photoactive compounds
EP0420397B1 (en) * 1989-07-28 1995-11-29 Wako Pure Chemical Industries Ltd Fulgimide derivatives

Also Published As

Publication number Publication date
JPS5331656A (en) 1978-03-25
FR2363568A2 (en) 1978-03-31
DE2647850A1 (en) 1978-03-02
NL7611809A (en) 1978-03-02

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