BE763715A - Procede de preparation de 2,2'-spiro-bis-(benzo-(f)-chromene) substitueen position 3 ou non substitue - Google Patents

Procede de preparation de 2,2'-spiro-bis-(benzo-(f)-chromene) substitueen position 3 ou non substitue

Info

Publication number
BE763715A
BE763715A BE763715A BE763715A BE763715A BE 763715 A BE763715 A BE 763715A BE 763715 A BE763715 A BE 763715A BE 763715 A BE763715 A BE 763715A BE 763715 A BE763715 A BE 763715A
Authority
BE
Belgium
Prior art keywords
substituted
chromene
spiro
benzo
bis
Prior art date
Application number
BE763715A
Other languages
English (en)
French (fr)
Inventor
D Nishio
S Kurihara
Original Assignee
Fuji Photo Film Co Ltd
Sankio Chemical Co Ltd
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 Fuji Photo Film Co Ltd, Sankio Chemical Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of BE763715A publication Critical patent/BE763715A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
    • C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
    • C07D493/10—Spiro-condensed systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
    • B41M5/132—Chemical colour-forming components; Additives or binders therefor
    • B41M5/136—Organic colour formers, e.g. leuco dyes
    • B41M5/15—Spiro-pyrans
    • 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
    • C07D311/78—Ring systems having three or more relevant rings
    • C07D311/92—Naphthopyrans; Hydrogenated naphthopyrans

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
BE763715A 1970-03-04 1971-03-03 Procede de preparation de 2,2'-spiro-bis-(benzo-(f)-chromene) substitueen position 3 ou non substitue BE763715A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1843270 1970-03-04

Publications (1)

Publication Number Publication Date
BE763715A true BE763715A (fr) 1971-08-02

Family

ID=11971471

Family Applications (1)

Application Number Title Priority Date Filing Date
BE763715A BE763715A (fr) 1970-03-04 1971-03-03 Procede de preparation de 2,2'-spiro-bis-(benzo-(f)-chromene) substitueen position 3 ou non substitue

Country Status (6)

Country Link
BE (1) BE763715A (enExample)
CA (1) CA945562A (enExample)
DE (1) DE2110443A1 (enExample)
ES (1) ES388829A1 (enExample)
FR (1) FR2084163A5 (enExample)
GB (1) GB1291689A (enExample)

Also Published As

Publication number Publication date
FR2084163A5 (enExample) 1971-12-17
CA945562A (en) 1974-04-16
GB1291689A (en) 1972-10-04
DE2110443A1 (de) 1972-07-13
ES388829A1 (es) 1973-06-01

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