GB675226A - Improvements in or relating to dyestuff intermediates - Google Patents

Improvements in or relating to dyestuff intermediates

Info

Publication number
GB675226A
GB675226A GB2699549A GB2699549A GB675226A GB 675226 A GB675226 A GB 675226A GB 2699549 A GB2699549 A GB 2699549A GB 2699549 A GB2699549 A GB 2699549A GB 675226 A GB675226 A GB 675226A
Authority
GB
United Kingdom
Prior art keywords
toluenesulphonate
methyl
prepared
etho
metho
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
GB2699549A
Inventor
John David Kendall
Douglas James Fry
Anthony John Morgan
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.)
Ilford Imaging UK Ltd
Original Assignee
Ilford 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 Ilford Ltd filed Critical Ilford Ltd
Priority to GB2699549A priority Critical patent/GB675226A/en
Publication of GB675226A publication Critical patent/GB675226A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D277/00Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
    • C07D277/60Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings condensed with carbocyclic rings or ring systems
    • C07D277/62Benzothiazoles
    • C07D277/64Benzothiazoles with only hydrocarbon or substituted hydrocarbon radicals attached in position 2
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D209/00Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/02Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
    • C07D209/04Indoles; Hydrogenated indoles
    • C07D209/10Indoles; Hydrogenated indoles with substituted hydrocarbon radicals attached to carbon atoms of the hetero ring
    • C07D209/12Radicals substituted by oxygen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Indole Compounds (AREA)

Abstract

Dye intermediates of the general formula <FORM:0675226/IV (b)/1> wherein R1 is an alkyl, aralkyl, or aryl group, R2 is an alkyl or aralkyl group, D is the residue of a 5- or 6-membered heterocyclic nucleus, and n is 0 or 1, are prepared by reacting a compound of the general formula <FORM:0675226/IV (b)/2> at a temperature not exceeding 160 DEG C., preferably from 100 DEG to 130 DEG C., with an alkyl or aralkyl p-toluenesulphonate R2O2SC7H7. Dy intermediates wherein the acid radical has other values are prepared by reacting the p-toluenesulphonates with the appropriate inorganic salt. 2 - b - Methyl:b - methoxyvinylbenzthiazole metho-p-toluenesulphonate is prepared by heating together on a water bath 2-acetylmethylene-3-methylbenzthiazoline and methyl p-toluenesulphonate, and the corresponding methiodide is prepared by pouring a hot ethanol solution of the p-toluenesulphonate into aqueous potassium iodide solution. The corresponding etho-p-toluenesulphonate, 2-b -methyl:b -ethoxyvinylbenzthiazole metho- and etho-p-toluenesulphonates, 2 - b - methyl:b - n - propoxyvinylbenzthiazole metho - and etho - p - toluenesulphonates, 2 - b - methyl:b - methoxyvinyl - 1 : 3 : 3 - trimethylindolenium metho-p-toluenesulphonate, and 2-b -methyl : b - phenylethoxyvinylbenzthiazole etho-p-toluenesulphonate are similarly prepared. Specifications 633,824 and 675,227, [Group IV (c)], are referred to.
GB2699549A 1949-10-20 1949-10-20 Improvements in or relating to dyestuff intermediates Expired GB675226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2699549A GB675226A (en) 1949-10-20 1949-10-20 Improvements in or relating to dyestuff intermediates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2699549A GB675226A (en) 1949-10-20 1949-10-20 Improvements in or relating to dyestuff intermediates

Publications (1)

Publication Number Publication Date
GB675226A true GB675226A (en) 1952-07-09

Family

ID=10252473

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2699549A Expired GB675226A (en) 1949-10-20 1949-10-20 Improvements in or relating to dyestuff intermediates

Country Status (1)

Country Link
GB (1) GB675226A (en)

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