GB595785A - Improvements in or relating to dyestuff intermediates - Google Patents

Improvements in or relating to dyestuff intermediates

Info

Publication number
GB595785A
GB595785A GB1976246A GB1976246A GB595785A GB 595785 A GB595785 A GB 595785A GB 1976246 A GB1976246 A GB 1976246A GB 1976246 A GB1976246 A GB 1976246A GB 595785 A GB595785 A GB 595785A
Authority
GB
United Kingdom
Prior art keywords
ethylthio
cyclohexenone
toluenesulphonate
methyl
acetic anhydride
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
GB1976246A
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
Filing date
Publication date
Application filed by Ilford Ltd filed Critical Ilford Ltd
Publication of GB595785A publication Critical patent/GB595785A/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
    • C07D277/02Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
    • C07D277/20Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D215/00Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
    • C07D215/02Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
    • C07D215/12Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D215/14Radicals substituted by oxygen atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D231/00Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/14Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D231/18One oxygen or sulfur atom
    • C07D231/20One oxygen atom attached in position 3 or 5
    • C07D231/22One oxygen atom attached in position 3 or 5 with aryl radicals attached to ring nitrogen atoms
    • C07D231/261-Phenyl-3-methyl-5- pyrazolones, unsubstituted or substituted on the phenyl ring
    • 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

Abstract

A dye intermediate is prepared by heating a compound of the forumula of Fig. 1. <PICT:0595785/IV/1> wherein R is an alkyl or aralkyl group and D a chain of 3 methylene groups, any of which may be hydrocarbon-substituted with an alkyl or aralkyl quaternary salt of a 5- or 6-membered heterocyclic nitrogen compound containing a reactive methylene group in a - or g -position to the quarternary nitrogen atom or a 5-membered heterocyclic nitrogen keto-methylene compound, the reaction being effected in presence of a non-basic compound which will combine with the liberated mercaptan RSH. The first compound may be D 2 : 3 - (3 - ethylthio - 5 : 5 - dimethyl)-cyclohexenone (1), D 2 : 3 - (3-ethylthio - 5 - phenyl) - cyclohexenone (1), D 2 : 3 - (3 - ethylthio - 5 - methyl) - cyclohexenone (1), or D 2 : 3 - (3 - ethylthio) - cyclohexenone (1), or an analogous compound prepared as in Specification 595,783 from 5-isopropylcyclohexanedione (1 : 3), 4 : 5 : 5-trimethylcyclohexanedione (1 : 3), 4 - phenyl - 5 : 5 - dimethylcyclohexanonedione (1 : 3), or 5-styrylcyclohexanedione (1 : 3). The non-basic compound may be acetic anhydride. Examples are given of the preparation of intermediates (1) by fusing together D 2 : 3-(3-ethylthio - 5 : 5 - dimethyl) - cyclohexenone (1), 1 - methylbenzthiazole, and methyl p-toluenesulphonate, adding acetic anhydride, refluxing and pouring into aqueous KI solution; (2) to (4) by proceeding similarly to example (1), but obtaining the methyl-p-toluenesulphonate, the ethiodide, and the ethyl-p-toluenesulphonate respectively; (5) by proceeding similarly to example (1), but using ethyl-p-toluenesulphonate and quinaldine; (6) by proceeding similarly to example (1), but using ethyl-p-toluenesulphonate and p-toluquinaldine; (7) by fusing together 1-methylbenzthiazole and ethyl p-toluenesulphonate, adding D 2 : 3-(3-ethylthio-5-methyl) - cyclohexenone (1), refusing, adding acetic anhydride, and refluxing; (8) by fusing together 1 - methylbenzthiazole, methyl p-toluenesulphonate, D 2 : 3 - (3-ethylthio)-cyclo - hexenone (1), adding acetic anhydride, and boiling; (9) by fusing together N-methylrhodanine and D 2 : 3 - (3 - ethylthio - 5 : 5 - dimethyl)-cyclohexenone (1), adding acetic anhydride and boiling; and (10) by fusing together 1-phenyl-3-methyl-5-pyrazolone and D 2 : 3-(3-ethylthio - 5 : 5 - dimethyl) - cyclohexenone (1), adding acetic anhydride, and boiling. Specification 595,784 also is referred to.
GB1976246A 1945-07-03 Improvements in or relating to dyestuff intermediates Expired GB595785A (en)

Publications (1)

Publication Number Publication Date
GB595785A true GB595785A (en) 1947-12-16

Family

ID=1734969

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1976246A Expired GB595785A (en) 1945-07-03 Improvements in or relating to dyestuff intermediates

Country Status (1)

Country Link
GB (1) GB595785A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734900A (en) * 1953-12-28 1956-02-14 Chxgh
US2856404A (en) * 1956-06-20 1958-10-14 Eastman Kodak Co Merocyanine dyes and intermediates
US2887479A (en) * 1955-11-15 1959-05-19 Eastman Kodak Co Heterocyclic quaternary salts containing a cyclohexenylidenemethyl substituent

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734900A (en) * 1953-12-28 1956-02-14 Chxgh
US2887479A (en) * 1955-11-15 1959-05-19 Eastman Kodak Co Heterocyclic quaternary salts containing a cyclohexenylidenemethyl substituent
US2856404A (en) * 1956-06-20 1958-10-14 Eastman Kodak Co Merocyanine dyes and intermediates

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