DE290540C - - Google Patents

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Publication number
DE290540C
DE290540C DENDAT290540D DE290540DA DE290540C DE 290540 C DE290540 C DE 290540C DE NDAT290540 D DENDAT290540 D DE NDAT290540D DE 290540D A DE290540D A DE 290540DA DE 290540 C DE290540 C DE 290540C
Authority
DE
Germany
Prior art keywords
selenium
phthaleins
halogen
halogen derivatives
phthalines
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.)
Active
Application number
DENDAT290540D
Other languages
German (de)
Publication of DE290540C publication Critical patent/DE290540C/de
Active legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B11/00—Diaryl- or thriarylmethane dyes
    • C09B11/28—Pyronines ; Xanthon, thioxanthon, selenoxanthan, telluroxanthon dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Photoreceptors In Electrophotography (AREA)

Description

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Darstellung selenhaltiger Phtaleine und deren Halogenderivate, darin bestehend, daß man die durch Reduktion aus den Phtaleinen und halogensubstituierten Phtaleinen entstehenden Phtaline in geeigneten Lösungsmitteln mit Selen· halogeniden behandelt und gegebenenfalls nach bekannten Methoden durch Einwirkung von Halogenen in Selenhalogenderivate überführt.Process for the preparation of selenium-containing phthaleins and their halogen derivatives, therein consisting that the phthaleins and halogen-substituted by reduction Phthalines formed in suitable solvents are treated with selenium halides and optionally converted into selenium halogen derivatives by known methods by the action of halogens.
DENDAT290540D Active DE290540C (en)

Publications (1)

Publication Number Publication Date
DE290540C true DE290540C (en)

Family

ID=545497

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT290540D Active DE290540C (en)

Country Status (1)

Country Link
DE (1) DE290540C (en)

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