GB1569472A - Spirodipyran dye intermediates for copying processes - Google Patents

Spirodipyran dye intermediates for copying processes Download PDF

Info

Publication number
GB1569472A
GB1569472A GB11541/77A GB1154177A GB1569472A GB 1569472 A GB1569472 A GB 1569472A GB 11541/77 A GB11541/77 A GB 11541/77A GB 1154177 A GB1154177 A GB 1154177A GB 1569472 A GB1569472 A GB 1569472A
Authority
GB
United Kingdom
Prior art keywords
carbon atoms
alkyl
spirodipyran
phenyl
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
GB11541/77A
Other languages
English (en)
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of GB1569472A publication Critical patent/GB1569472A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D493/00Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
    • C07D493/02Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
    • C07D493/10Spiro-condensed systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/124Duplicating 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
    • B41M5/132Chemical colour-forming components; Additives or binders therefor
    • B41M5/136Organic colour formers, e.g. leuco dyes
    • B41M5/15Spiro-pyrans

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Color Printing (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
GB11541/77A 1976-03-19 1977-03-18 Spirodipyran dye intermediates for copying processes Expired GB1569472A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2611600A DE2611600C2 (de) 1976-03-19 1976-03-19 Spirodipyrane und deren Verwendung

Publications (1)

Publication Number Publication Date
GB1569472A true GB1569472A (en) 1980-06-18

Family

ID=5972868

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11541/77A Expired GB1569472A (en) 1976-03-19 1977-03-18 Spirodipyran dye intermediates for copying processes

Country Status (5)

Country Link
US (3) US4110348A (enExample)
CH (1) CH625523A5 (enExample)
DE (1) DE2611600C2 (enExample)
FR (1) FR2344559A1 (enExample)
GB (1) GB1569472A (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2611600C2 (de) * 1976-03-19 1986-12-18 Basf Ag, 6700 Ludwigshafen Spirodipyrane und deren Verwendung
DE2737207A1 (de) * 1977-08-18 1979-03-01 Basf Ag Farbbildner fuer kopierverfahren
DE2847690A1 (de) * 1978-11-03 1980-05-22 Basf Ag Farbbildner fuer kopierverfahren
US4342696A (en) * 1980-10-08 1982-08-03 Armstrong World Industries, Inc. 7-Dimethylamino-3-substituted-2,2'-spirobi[2H-1-benzopyrans]
US4348508A (en) * 1981-06-25 1982-09-07 Armstrong World Industries, Inc. 3-Substituted-7-alkoxy-2,2'-Spirobi[2H-1-benzopyrans]
US4382134A (en) * 1981-10-22 1983-05-03 Armstrong World Industries, Inc. 3-Substituted-7-alkoxy-spiro(2H-1-benzopyran-2,3'-(3H)-naphtho(2,1-B)pyrans)
US4384094A (en) * 1981-10-22 1983-05-17 Armstrong World Industries, Inc. 3-Substituted-7-dialkylamino-spiro(2H-1-benzopyran-2,3'-(3H)-naphtha(2,1-b)pyrans)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL252815A (enExample) * 1959-06-19
NL125655C (enExample) * 1959-07-15
JPS4833712B1 (enExample) * 1969-05-26 1973-10-16
GB1359472A (en) * 1970-09-01 1974-07-10 Agfa Gevaert Photographic recording and reproduction of information
DD109871A5 (enExample) * 1972-07-01 1974-11-20
DE2323803C3 (de) * 1973-05-11 1983-12-01 Basf Ag, 6700 Ludwigshafen Spirodipyrane und deren Verwendung als Farbbildner für Kopierverfahren
DE2430568C3 (de) * 1974-06-26 1979-02-08 Basf Ag, 6700 Ludwigshafen Spirodipyrane und deren Verwendung als Farbbildner für druckempfindliche Aufzeichnungsmaterialien
DE2611600C2 (de) * 1976-03-19 1986-12-18 Basf Ag, 6700 Ludwigshafen Spirodipyrane und deren Verwendung
DE2737207A1 (de) * 1977-08-18 1979-03-01 Basf Ag Farbbildner fuer kopierverfahren

Also Published As

Publication number Publication date
US4110348A (en) 1978-08-29
FR2344559B1 (enExample) 1982-06-04
US4316027A (en) 1982-02-16
DE2611600A1 (de) 1977-09-22
DE2611600C2 (de) 1986-12-18
FR2344559A1 (fr) 1977-10-14
US4345073A (en) 1982-08-17
CH625523A5 (enExample) 1981-09-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee