GB1291689A - Method of producing 3-substituted or unsubstituted-2,2'-spirobis-(benzo f chromen) - Google Patents

Method of producing 3-substituted or unsubstituted-2,2'-spirobis-(benzo f chromen)

Info

Publication number
GB1291689A
GB1291689A GB2343371A GB2343371A GB1291689A GB 1291689 A GB1291689 A GB 1291689A GB 2343371 A GB2343371 A GB 2343371A GB 2343371 A GB2343371 A GB 2343371A GB 1291689 A GB1291689 A GB 1291689A
Authority
GB
United Kingdom
Prior art keywords
spirobis
chromen
benzo
unsubstituted
substituted
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2343371A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SANKYO CHEMICAL CO Ltd
Fujifilm Holdings Corp
Original Assignee
SANKYO CHEMICAL CO Ltd
Fuji Photo Film 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 SANKYO CHEMICAL CO Ltd, Fuji Photo Film Co Ltd filed Critical SANKYO CHEMICAL CO Ltd
Publication of GB1291689A publication Critical patent/GB1291689A/en
Expired legal-status Critical Current

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)

Abstract

1291689 Production of 3-substituted or unsubstituted 2,2<SP>1</SP>-spirobis(benzo(f)chromen) FUJI PHOTO FILM CO Ltd and SANKYO CHEMICAL CO Ltd 19 April 1971 [4 March 1970] 23433/71 Heading C2C 2,2<SP>1</SP>- Spirobis - (benzo(f)chromen) or 3- methyl - 2,2<SP>1</SP>- spirobis - (benzo(f)chromen) is prepared by condensing 2-hydroxy-1-naphthaldehyde with acetone or methyl ethyl ketone in an aliphatic alcohol having 1-4 carbon atoms and in the presence of hydrochloric acid and or sulphuric acid as condensing agent; and effecting ring-closure of the resultant product by neutralization with a base.
GB2343371A 1970-03-04 1971-04-19 Method of producing 3-substituted or unsubstituted-2,2'-spirobis-(benzo f chromen) Expired GB1291689A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1291689A true GB1291689A (en) 1972-10-04

Family

ID=11971471

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2343371A Expired GB1291689A (en) 1970-03-04 1971-04-19 Method of producing 3-substituted or unsubstituted-2,2'-spirobis-(benzo f chromen)

Country Status (6)

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

Also Published As

Publication number Publication date
FR2084163A5 (en) 1971-12-17
BE763715A (en) 1971-08-02
ES388829A1 (en) 1973-06-01
CA945562A (en) 1974-04-16
DE2110443A1 (en) 1972-07-13

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees