GB327526A - Manufacture of aralkyl-benzanthrones - Google Patents

Manufacture of aralkyl-benzanthrones

Info

Publication number
GB327526A
GB327526A GB642929A GB642929A GB327526A GB 327526 A GB327526 A GB 327526A GB 642929 A GB642929 A GB 642929A GB 642929 A GB642929 A GB 642929A GB 327526 A GB327526 A GB 327526A
Authority
GB
United Kingdom
Prior art keywords
benzanthrones
aralkyl
benzyl
dichlorobenzanthrone
benzanthrone
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
GB642929A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB642929A priority Critical patent/GB327526A/en
Publication of GB327526A publication Critical patent/GB327526A/en
Expired 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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/02—Benzathrones
    • C09B3/06—Preparation from starting materials already containing the benzanthrone nucleus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Indole Compounds (AREA)

Abstract

327,526. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). Feb. 27, 1929. Samples furnished. Aralkyl benzanthrones are obtained by condensing a benzanthrone, unsubstituted in the Bz-1- position, with a substituted or unsubstituted benzyl halide, in presence of a diluent, and a hydrogen-halide-eliminating catalyst, or with a psubstituted benzyl alcohol, in presence of an agent promoting the elimination of water. In examples, benzanthrone reacts with (1) benzyl chloride and copper powder, (2) p-nitro-benzyl alcohol and concentrated sulphuric acid, (3) 3-nitro-4-methoxybenzyl chloride and copper powder, and (4) 4 :8- dichlorobenzanthrone reacts with benzyl chloride, to give the corresponding Bz.-1-aralkyl benzanthrones. 4 : 8-Dichlorobenzanthrone is obtained by the action of glycerol on 1 :5-dichloroanthraquinone in presence of sulphuric acid and a reducing agent.
GB642929A 1929-02-27 1929-02-27 Manufacture of aralkyl-benzanthrones Expired GB327526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB642929A GB327526A (en) 1929-02-27 1929-02-27 Manufacture of aralkyl-benzanthrones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB642929A GB327526A (en) 1929-02-27 1929-02-27 Manufacture of aralkyl-benzanthrones

Publications (1)

Publication Number Publication Date
GB327526A true GB327526A (en) 1930-04-10

Family

ID=9814321

Family Applications (1)

Application Number Title Priority Date Filing Date
GB642929A Expired GB327526A (en) 1929-02-27 1929-02-27 Manufacture of aralkyl-benzanthrones

Country Status (1)

Country Link
GB (1) GB327526A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251242A (en) * 1990-12-31 1992-07-01 Robert Ramage Protective group

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251242A (en) * 1990-12-31 1992-07-01 Robert Ramage Protective group
GB2251242B (en) * 1990-12-31 1995-01-11 Robert Ramage Protecting compound

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