GB817564A - 10-(4-n-leucauramine-benzoyl)-3,7-bis-(dimethylamino)-phenothiazine - Google Patents

10-(4-n-leucauramine-benzoyl)-3,7-bis-(dimethylamino)-phenothiazine

Info

Publication number
GB817564A
GB817564A GB1933757A GB1933757A GB817564A GB 817564 A GB817564 A GB 817564A GB 1933757 A GB1933757 A GB 1933757A GB 1933757 A GB1933757 A GB 1933757A GB 817564 A GB817564 A GB 817564A
Authority
GB
United Kingdom
Prior art keywords
dimethylamino
bis
phenothiazine
benzoyl
leucauramine
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
GB1933757A
Inventor
Frederick George Francis
David John Neale
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.)
Caribonum Ltd
Original Assignee
Caribonum Ltd
Filing date
Publication date
Application filed by Caribonum Ltd filed Critical Caribonum Ltd
Priority to US739982A priority Critical patent/US2915415A/en
Publication of GB817564A publication Critical patent/GB817564A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B11/00Diaryl- or thriarylmethane dyes
    • C09B11/02Diaryl- or thriarylmethane dyes derived from diarylmethanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

The invention comprises 10-(4-N-leucauramine - benzoyl) - 3 : 7 - bis - (dimethylamino)-phenothiazine of the formula <FORM:0817564/IV (c)/1> and a method for making it by condensing Michlers hydrol (4 : 41-bis-(dimethylamino)-diphenylcarbinol) with 10 - (4 - aminobenzoyl) - 3 : 7 - bis - (dimethylamino) - phenothiazine of the formula <FORM:0817564/IV (c)/2> in boiling aqueous methanol. An example is given. The substance is used in a coating for colourless transfer sheet material and turns blue on contact with acidic material. The Provisional Specification states that 10-(4-amino - benzoyl) - 3 : 7 - bis - (dimethylamino)-phenothiazine may be made by nitrating benzoyl - leuco - methylene blue, separating p-nitro derivative and reducing it to the corresponding amine.
GB1933757A 1957-06-19 1957-06-19 10-(4-n-leucauramine-benzoyl)-3,7-bis-(dimethylamino)-phenothiazine Expired GB817564A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US739982A US2915415A (en) 1957-06-19 1958-06-05 Leucauramine derivate of benzoyl leuco methylene blue and transfer sheet coated therewith

Publications (1)

Publication Number Publication Date
GB817564A true GB817564A (en) 1959-07-29

Family

ID=1734640

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1933757A Expired GB817564A (en) 1957-06-19 1957-06-19 10-(4-n-leucauramine-benzoyl)-3,7-bis-(dimethylamino)-phenothiazine

Country Status (1)

Country Link
GB (1) GB817564A (en)

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