NO129038B - - Google Patents
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- NO129038B NO129038B NO353671A NO353671A NO129038B NO 129038 B NO129038 B NO 129038B NO 353671 A NO353671 A NO 353671A NO 353671 A NO353671 A NO 353671A NO 129038 B NO129038 B NO 129038B
- Authority
- NO
- Norway
- Prior art keywords
- formula
- compounds
- parts
- benzimidazyl
- ethylene
- Prior art date
Links
- 239000003599 detergent Substances 0.000 claims description 18
- 239000005977 Ethylene Substances 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 5
- GELXFVQAWNTGPQ-UHFFFAOYSA-N [N].C1=CNC=N1 Chemical group [N].C1=CNC=N1 GELXFVQAWNTGPQ-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 239000002585 base Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 8
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 8
- 238000009835 boiling Methods 0.000 description 7
- 239000000835 fiber Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 5
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000004061 bleaching Methods 0.000 description 4
- 239000007844 bleaching agent Substances 0.000 description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 4
- 239000004327 boric acid Substances 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 235000011187 glycerol Nutrition 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- -1 imidazole compound Chemical class 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 239000011592 zinc chloride Substances 0.000 description 4
- 235000005074 zinc chloride Nutrition 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 150000003855 acyl compounds Chemical class 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- XENVCRGQTABGKY-ZHACJKMWSA-N chlorohydrin Chemical compound CC#CC#CC#CC#C\C=C\C(Cl)CO XENVCRGQTABGKY-ZHACJKMWSA-N 0.000 description 3
- 150000002460 imidazoles Chemical class 0.000 description 3
- 239000012442 inert solvent Substances 0.000 description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 2
- SZIFAVKTNFCBPC-UHFFFAOYSA-N 2-chloroethanol Chemical compound OCCCl SZIFAVKTNFCBPC-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 150000004985 diamines Chemical class 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 239000001530 fumaric acid Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- HFPZCAJZSCWRBC-UHFFFAOYSA-N p-cymene Chemical compound CC(C)C1=CC=C(C)C=C1 HFPZCAJZSCWRBC-UHFFFAOYSA-N 0.000 description 2
- UHZYTMXLRWXGPK-UHFFFAOYSA-N phosphorus pentachloride Chemical compound ClP(Cl)(Cl)(Cl)Cl UHZYTMXLRWXGPK-UHFFFAOYSA-N 0.000 description 2
- 235000021395 porridge Nutrition 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 1
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- ZLYYJUJDFKGVKB-OWOJBTEDSA-N (e)-but-2-enedioyl dichloride Chemical compound ClC(=O)\C=C\C(Cl)=O ZLYYJUJDFKGVKB-OWOJBTEDSA-N 0.000 description 1
- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical class CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical class C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-L L-tartrate(2-) Chemical compound [O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O FEWJPZIEWOKRBE-JCYAYHJZSA-L 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 235000003704 aspartic acid Nutrition 0.000 description 1
- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000004653 carbonic acids Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 229940117389 dichlorobenzene Drugs 0.000 description 1
- 150000004816 dichlorobenzenes Chemical class 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 230000026030 halogenation Effects 0.000 description 1
- 238000005658 halogenation reaction Methods 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910000042 hydrogen bromide Inorganic materials 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- BRMYZIKAHFEUFJ-UHFFFAOYSA-L mercury diacetate Chemical compound CC(=O)O[Hg]OC(C)=O BRMYZIKAHFEUFJ-UHFFFAOYSA-L 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 238000006798 ring closing metathesis reaction Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 229940095064 tartrate Drugs 0.000 description 1
- NJRXVEJTAYWCQJ-UHFFFAOYSA-N thiomalic acid Chemical compound OC(=O)CC(S)C(O)=O NJRXVEJTAYWCQJ-UHFFFAOYSA-N 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
- F16D65/123—Discs; Drums for disc brakes comprising an annular disc secured to a hub member; Discs characterised by means for mounting
- F16D65/124—Discs; Drums for disc brakes comprising an annular disc secured to a hub member; Discs characterised by means for mounting adapted for mounting on the wheel of a railway vehicle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
- F16D65/128—Discs; Drums for disc brakes characterised by means for cooling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Plural Heterocyclic Compounds (AREA)
Description
Anvendelse av di-[benzimidazyl-(2)]-etylenforbindelser som optiske blekemidler, særlig i vaskemidler. Use of di-[benzimidazyl-(2)]-ethylene compounds as optical brighteners, particularly in detergents.
Foreliggende oppfinnelse angår anvendelse av di-[benzimidazyl-(2)]-etylenfor-bindelser som optiske blekemidler. Ifølge The present invention relates to the use of di-[benzimidazyl-(2)]-ethylene compounds as optical brighteners. according to
oppfinnelsen anvendes for dette formål di- the invention is used for this purpose di-
[benzimidazyl- (2) ] -etylen-forbindelser in-neholdende på minst ett imidazolkvelstoffatom en (3, y-dioksylpropylgruppe og som i form av de frie baser tilsvarer formlen: [benzimidazyl-(2)]-ethylene compounds containing at least one imidazole nitrogen atom a (3, y-dioxylpropyl group) and which in the form of the free bases correspond to the formula:
hvori m og n hver betyr et helt tall med where m and n each mean an integer with
en verdi på høyst 2, idet m fortrinnsvis er a value of at most 2, where m is preferably
lik 1. equal to 1.
For de nye di-[benzimidazyl-(2)]-etylen-forbindelser med ovenstående sam- For the new di-[benzimidazyl-(2)]-ethylene compounds with the above con-
mensetning kommer følgende fremstil-lingsmetoder i betraktning: composition, the following production methods are taken into account:
A. På forbindelser, som i form av de fri baser tilsvarer formelen: lar man innvirke slike midler som er i stand til å avgi en rest med formelen A. On compounds, which in the form of the free bases correspond to the formula: such agents are allowed to act which are capable of giving off a residue with the formula
hvor k, m og n hver betyr et helt tall på høyst 2 og summen k + m og k + n hver minst utgjør minst 3. where k, m and n each mean a whole number of at most 2 and the sum of k + m and k + n each at least amounts to at least 3.
Som middel, som avgir resten med formel (3) kommer fremfor alt glycerin-klorhydrin (k = 2) eller såfremt det i utgangs-stoffet med formel (2) allerede er til stede en dioksypropylgruppe (m = 2), også gly-kolklorhydrin (k = 1) i betraktning. Det fås altså følgende muligheter: 1) Innføring av en (3, Y~dioksyProPvl~ gruppe i a, (3-di-[benzimidazyl-(2)]-etylenet (m = l;n = l;k = 2; molekylarforhold for reaksjonsdeltagerne = 1:1). 2) Innføring av to |3, y-dioksypropylgrup-per i a, (3-di-[benzimidazyl-(2)]-etylen (m = l;n = l;k = 2; molekylarforhold 1:2), eller hvilket gir det As an agent that gives off the residue with formula (3), above all glycerin chlorohydrin (k = 2) or, if a dioxypropyl group (m = 2) is already present in the starting substance with formula (2), also glycol chlorohydrin (k = 1) into consideration. The following possibilities are thus obtained: 1) Introduction of a (3, Y~dioxyProPvl~ group in a, (3-di-[benzimidazyl-(2)]-ethylene (m = l;n = l;k = 2; molecular ratio for the reaction participants = 1:1). 2) Introduction of two |3, y-dioxypropyl groups in a, (3-di-[benzimidazyl-(2)]-ethylene (m = 1;n = 1;k = 2; molecular ratio 1:2), or which gives it
samme sluttprodukt: same end product:
3) Innføring av en videre p, y-dioksypropylgruppe i den ifølge 1) erholdte forbindelse (m = 2;n = 2;k = 2; molekylarforhold 1:1). (5) 4) Innføring av en p, y-dioksypropylgruppe i [a-benzimidazyl-(2)]-[|3-N-|3-oksyetylbenzimidazyl- (2) ] -etylen (m = l;n = 2;k = 2; molekylarforhold 1:1). 5) Innføring av en p-oksyetylgruppe i det f. eks. ifølge 1) erholdte [a-benzimidazyl- (2) ] - [p-N-p.y-dioksypropyl-benzimidazyl-(2)]-etylen (m = 2; n = 2; k = 1; molekylarforhold 1:1). Omsetningen av imidazolforbindelsen med formel (2) med glyserin eller glykol-klorhydrin foregår fortrinnsvis i et egnet organisk oppløsningsmiddel, slik som me-tanol, etanol eller propanol ved forhøyet temperatur og under tilsetning av et syre-bindende middel, f. eks. et alkalihydrok-syd. Særlig fordelaktig har utførelsesfor-mene (1 og 2) vist seg å være, hvor man på forbindelsen, som i formen tilsvarer den fri base med formelen 3) Introduction of a further p,y-dioxypropyl group in the compound obtained according to 1) (m = 2; n = 2; k = 2; molecular ratio 1:1). (5) 4) Introduction of a p,y-dioxypropyl group into [α-benzimidazyl-(2)]-[|3-N-|3-oxyethylbenzimidazyl-(2)]-ethylene (m = 1;n = 2; k = 2; molecular ratio 1:1). 5) Introduction of a p-oxyethyl group in the e.g. according to 1) obtained [α-benzimidazyl-(2)]-[p-N-p.y-dioxypropyl-benzimidazyl-(2)]-ethylene (m = 2; n = 2; k = 1; molecular ratio 1:1). The reaction of the imidazole compound of formula (2) with glycerine or glycol-chlorohydrin preferably takes place in a suitable organic solvent, such as methanol, ethanol or propanol at an elevated temperature and with the addition of an acid-binding agent, e.g. an alkali hydro-syd. The embodiments (1 and 2) have proven to be particularly advantageous, where the compound, which in form corresponds to the free base with the formula
lar glycerinklorhydrin innvirke. allow the glycerin chlorohydrin to take effect.
B. I forbindelser, som i form tilsvarer de fri baser med formelen B. In compounds, which correspond in form to the free bases with the formula
hvori m, n og p betyr et helt tall med en verdi på høyst 2, forsåper epoksygruppene. Utgangsstoffene med formel (5) kan fremstilles f. eks. av a, p-di-[benzimidazyl--(2)1-etylen og epiklorhydrin. Forsåpnin-gen av epoksygruppene til dioksypropyl-grupper foregår hensiktsmessig etter i og for seg kjente fremgangs-måter. C. Forbindelser, som i form av de fri baser tilsvarer formelen where m, n and p mean an integer with a value of at most 2, saponify the epoxy groups. The starting materials with formula (5) can be prepared, e.g. of a,p-di-[benzimidazyl-(2)1-ethylene and epichlorohydrin. The saponification of the epoxy groups into dioxypropyl groups conveniently takes place according to procedures known per se. C. Compounds, which in terms of the free bases correspond to the formula
hvori m og n hver betyr et helt tall med en verdi på høyst 2, behandles med dehydrogenerende midler. wherein m and n each represent an integer with a value of at most 2, is treated with dehydrogenating agents.
De utgangsstoffer som trenges for dette med formel (6) kan fåes på den under A angitte måte, idet det dog i stedet for etylenforbindelsene med formel (2) anvendes de tilsvarende etanforbindelser. Som dehydrogenerende middel kommer fortrinnsvis ferriklorid eller mercurifor-bindelser slik som mercuriacetat i betraktning. D. Forbindelser som i form av de fri baser tilsvarer formelen: hvori m og n hver betyr et helt tall med | en verdi på høyst 2, behandles med halo-genvannstoffavspaltende midler. Utgangsstoffene med formel (7) kan fremstilles ved halogenering av forbindelsene med formel (6) med sulfurylklorid, brom, klor eller fosforpentaklorid, og av spaltningen av klorvannstoff henholdsvis bromvannstoff fra de således erholdte forbindelser foregår hensiktsmessig ved hjelp av alkalier. E. Av forbindelser, som i form av de fri baser tilsvarer formelen hvori m og n hver betyr et helt tall med en verdi på høyst 2, avspaltes vann. Forbindelsene med formel (8) kan lett fremstilles av det kjente a, |3-di-[benzimidazyl]-a-oksyetan med formelen The starting materials needed for this with formula (6) can be obtained in the manner indicated under A, although instead of the ethylene compounds with formula (2) the corresponding ethane compounds are used. Ferric chloride or mercuric compounds such as mercuric acetate are preferably considered as dehydrogenating agents. D. Compounds which in terms of the free bases correspond to the formula: where m and n each mean an integer with | a value of at most 2, is treated with halogen dehydrogenating agents. The starting substances of formula (7) can be prepared by halogenation of the compounds of formula (6) with sulphuryl chloride, bromine, chlorine or phosphorus pentachloride, and by the splitting of hydrogen chloride or hydrogen bromide from the compounds thus obtained takes place suitably with the aid of alkalis. E. Of compounds, which in the form of the free bases correspond to the formula where m and n each mean an integer with a value of at most 2, water is split off. The compounds of formula (8) can be easily prepared from the known α,β-di-[benzimidazyl]-α-oxyethane of the formula
(sammenln. det som er angitt under A). Den symmetriske forbindelse med formel (8) [m = 2; n = 2] kan også fåes ved (compare what is stated under A). The symmetrical compound with formula (8) [m = 2; n = 2] can also be obtained by
omsetning av l-amino-2-p, y-dioksypro-pylaminobensol med eplesyre eller deres funksjonelle derivater. Vannavspaltningen av forbindelsene med formel (8) kan foregå på enkel måte ved opphetning av disse baser eller deres salter til høye temperaturer. Hensiktsmessig er anvendelsen av høytkokende oppløsningsmidler slik som o-diklorbensol og man arbeider fordelaktig ved koketemperaturer for oppløsningsmid-let, skiller fra det vann som er avdestillert med oppløsningsmidlet og tilfører reak-sjonsblandingen i avvannet oppløsnings-middel. Medanvendelsen av vannavspaltende midler, slik som natriumbisulfat, sinkklorid, borsyre eller fosforpentaklorid kan være gunstig. reaction of 1-amino-2-p,y-dioxypropylaminobenzene with malic acid or their functional derivatives. The water separation of the compounds of formula (8) can take place in a simple way by heating these bases or their salts to high temperatures. It is expedient to use high-boiling solvents such as o-dichlorobenzene and one works advantageously at boiling temperatures for the solvent, separates from the water which has been distilled off with the solvent and supplies the reaction mixture in dewatered solvent. The combined use of water splitting agents, such as sodium bisulphate, zinc chloride, boric acid or phosphorus pentachloride can be beneficial.
F. Aminet, som i form av de fri baser tilsvarer formelen omsettes i molekylarforholdet 2 : 1 med tioeplesyre eller asparaginsyre eller funksjonelle derivater av disse syrer. F. The amine, which in the form of the free bases corresponds to the formula is reacted in the molecular ratio 2:1 with thiomalic acid or aspartic acid or functional derivatives of these acids.
Denne omsetning foregår hensiktsmessig ved opphetning av begge utgangsstoffene i nærvær av et oppløsningsmiddel til middels høye temperaturer. Som oppløs-ningsmiddel anvendes særlig middels kon-sentrerte vandige mineralsyrer, videre også organiske oppløsningsmidler, som diklor-bensoler. Omsetningen kan lett utføres således at i ett arbeidsforløp foregår kondensasjonen av 2 molekyler amin med et molekyl dikarbonsyre, ringslutningen til di-imidazylforbindelser og avspaltningen av svovelvannstoff, henholdsvis ammoni-akk fra resten av dikarbonsyren. This reaction conveniently takes place by heating both starting materials in the presence of a solvent to moderately high temperatures. Medium-concentrated aqueous mineral acids are particularly used as solvents, and also organic solvents, such as dichlorobenzenes. The reaction can easily be carried out so that in one work process the condensation of 2 molecules of amine with one molecule of dicarboxylic acid, the cyclization to diimidazyl compounds and the separation of hydrogen sulphide, respectively ammonia from the rest of the dicarboxylic acid, takes place.
G. Aminet, som i form av de fri baser tilsvarer ovenstående formel (10), omsettes med fumarsyre eller dens funksjonelle derivater slik som fumarsyrediklorid eller fu-marsyredialkylester. Denne omsetning kan utføres på enkel måte ved sammensmelt-ning av reaksjonsdeltagerne. Omsetnings-produktet kan deretter renses ved gjentatt oppløsning og/eller omkrystallisasjon. G. The amine, which in the form of the free bases corresponds to the above formula (10), is reacted with fumaric acid or its functional derivatives such as fumaric acid dichloride or fumaric acid dialkyl ester. This conversion can be carried out in a simple way by fusing the reaction participants. The reaction product can then be purified by repeated dissolution and/or recrystallization.
H. Karbonsyrer med formelen H. Carbonic acids with the formula
eller deres funksjonelle derivater omsettes med diaminer med formelen idet p, p', q, q' og r hver betyr et helt tall med en verdi som er høyst 2 og summen p -f p' utgjør minst 3. De monokarbonsyrer med formel (11) som derved tjener som utgangsstoffer kan fåes ved tilleiring (r = 2), henholdsvis kondensasjonen (r = 1) av diaminer med formelen or their functional derivatives are reacted with diamines of the formula where p, p', q, q' and r each represent an integer with a value of at most 2 and the sum p -f p' amounts to at least 3. The monocarboxylic acids of formula (11) which thereby serve as starting materials can be obtained by addition (r = 2), respectively the condensation (r = 1) of diamines with the formula
og maleinsyreanhydrid. and maleic anhydride.
Alt etter reaksjonsbetingelsene, hvor-under kondensasjonen av forbindelsene med formel (13) med maleinsyreanhydrid foretas, fåes acylforbindelser (r = 2) eller umiddelbart imidazolforbindelser (r = 1). Tilleiringen utføres hensiktsmessig i nærvær av et organisk inert oppløsningsmid-del, slik som bensol, klorbensol, toluol eller xylol, ved middels høye temperaturer, f. eks. mellom 40 og 90° C. Depending on the reaction conditions, under which the condensation of the compounds of formula (13) with maleic anhydride is carried out, acyl compounds (r = 2) or immediately imidazole compounds (r = 1) are obtained. The deposition is conveniently carried out in the presence of an organic inert solvent, such as benzene, chlorobenzene, toluene or xylol, at moderately high temperatures, e.g. between 40 and 90° C.
Man kommer til imidazolforbindelsene med formel (11) (r = 1), når man utfører kondensasjonen av et mol av en forbindelse med formel (13) med et mol maleinsyreanhydrid i nærvær av en sur katalysa-tor, slik som p-toluolsulfonsyre eller borsyre, og hensiktsmessig et høyerekokende, organisk inert oppløsningsmiddel, f. eks. diklorbensol eller cymol, ved temperaturer over 150° C og under 200° C, fortrinnsvis mellom 150° C og 180° C idet 1 mol vann avspaltes. The imidazole compounds of formula (11) (r = 1) are obtained when one mol of a compound of formula (13) is condensed with one mol of maleic anhydride in the presence of an acidic catalyst, such as p-toluenesulfonic acid or boric acid , and suitably a higher boiling, organic inert solvent, e.g. dichlorobenzene or cymol, at temperatures above 150° C and below 200° C, preferably between 150° C and 180° C, as 1 mol of water is split off.
Imidazolforbindelsene med formel (11) kan også fremstilles ved at man behandler acylforbindelsene med formel (11) med vannavspaltende midler, f. eks. med sinkklorid. Ved behandling av acylforbindelsene med formel (11) i en sinkkloridsmelte, som før oppvarmningen med fordel ble til-ført noe vann, kan vannavspaltningen og dermed ringslutningen til imidazolforbindelsen utføres på enkel måte og med gode resultater. Egnede temperaturer for vannavspaltningen ved hjelp av sinkklorid er f. eks. slike på 140° C til 180° C, fortrinnsvis ca. 170° C. Forbindelsene med formel (11) viderekondenseres nu ved hjelp av vannavspaltende middel med slike med formel (12). Som vannavspaltende middel har for denne videre kondensasjon fremfor alt borsyre vist seg å være gunstig. Man går derved hensiktsmessig frem således at man oppvarmer reaksjonskompo-nentene i nærvær av en inert gass, slik som kvelstoff, sammen med borsyre og eventuelt under forminsket trykk til temperaturer mellom 120 og 200° C. Man kan også arbeide i nærvær av et høyerekokende organisk inert oppløsningsmiddel, f. eks. cymol, ved vanlig trykk og uten inert gass. The imidazole compounds of formula (11) can also be prepared by treating the acyl compounds of formula (11) with water-splitting agents, e.g. with zinc chloride. When treating the acyl compounds of formula (11) in a zinc chloride melt, to which some water was advantageously added before the heating, the water elimination and thus the ring closure to the imidazole compound can be carried out in a simple way and with good results. Suitable temperatures for the water separation using zinc chloride are e.g. such at 140° C to 180° C, preferably approx. 170° C. The compounds of formula (11) are now further condensed with the aid of a water splitting agent with those of formula (12). As a water-splitting agent for this further condensation, above all, boric acid has proven to be beneficial. One proceeds accordingly by heating the reaction components in the presence of an inert gas, such as nitrogen, together with boric acid and possibly under reduced pressure to temperatures between 120 and 200° C. One can also work in the presence of a higher-boiling organic inert solvent, e.g. cymol, at normal pressure and without inert gas.
Mens fremstillingsmetodene F og G fremfor alt egner seg for fremstilling av symmetriske forbindelser med formel (1), kommer fremgangsmåte H i første rekke i betraktning for fremstilling av asymme-triske produkter. While production methods F and G are above all suitable for the production of symmetrical compounds with formula (1), method H is primarily considered for the production of asymmetric products.
De nye forbindelser med formel (1) anvendes ifølge oppfinnelsen som optiske blekemidler. The new compounds with formula (1) are used according to the invention as optical brighteners.
De egner seg til blekning av de for-skjelligste materialer, særlig organiske materialer. Gode resultater fåes f. eks. ved blekning av lakker, slik som alkydharpiks-lakker eller nitrocelluloseesterlakker, videre også ved blekning av filmer. De egner seg særlig godt til blekning av materialer av fiberaktig struktur, f. eks. av fibrer av naturlig eller regenerert cellulose, halv-eller helsyntetiske fibrer, f. eks. cellulose-acetatfibrer (di- eller triacetat), polyamidfibrer, videre polyacrylnitril- eller po-lyesterfibrer. Behandlingen av de materialer som skal blekes optisk med de nye forbindelser kan foregå på i og for seg kjent måte. Tekstilfibrene blekes med fordel i vandig medium, hvori forbindelsen er fin-dispergert eller oppløst som salt. They are suitable for bleaching a wide variety of materials, especially organic materials. Good results are obtained e.g. when bleaching varnishes, such as alkyd resin varnishes or nitrocellulose ester varnishes, further also when bleaching films. They are particularly suitable for bleaching materials with a fibrous structure, e.g. of fibers of natural or regenerated cellulose, semi- or fully synthetic fibres, e.g. cellulose acetate fibers (di- or triacetate), polyamide fibers, further polyacrylonitrile or polyester fibers. The treatment of the materials to be optically bleached with the new compounds can take place in a manner known per se. The textile fibers are preferably bleached in an aqueous medium, in which the compound is finely dispersed or dissolved as salt.
Et særlig gunstig forhold viser de nye blekemidler av den til å begynne med angitte sammensetning i vaskemidler, særlig de vanlige vaskemidler som tjener til vask av tekstilmaterialer, hvori de kan tilsettes i vanlig mengde på ca. 0,001 til 1 pst., fortrinnsvis 0,01 til 0,5 pst. beregnet på total-mengden av vaskemidlet). I alminnelighet er det hensiktsmessig ikke ganske enkelt å iblande blekemidlet i vaskemidlet i tørr tilstand, men å sette det oppløst i vann i form av et vannoppløselig salt, f. eks. sul-fatet, hydrokloridet, acetatet eller tartra-tet, til vaskemidlet ved dettes fremstilling, så lenge dette ennu foreligger som oppløs-ning eller vandig suspensjon, og deretter tørke hele blandingen f. eks. i forstøvnings-tørker. A particularly favorable relationship is shown by the new bleaching agents of the initially indicated composition in detergents, in particular the usual detergents used for washing textile materials, in which they can be added in a normal amount of approx. 0.001 to 1 percent, preferably 0.01 to 0.5 percent calculated on the total quantity of the detergent). In general, it is appropriate not to simply mix the bleach into the detergent in a dry state, but to put it dissolved in water in the form of a water-soluble salt, e.g. the sulphate, hydrochloride, acetate or tartrate, to the detergent in its preparation, as long as this is still present as a solution or aqueous suspension, and then dry the entire mixture, e.g. in a spray dryer.
Kjente optiske blekemidler av liknende sammensetning som slike med formel (1), spesielt N-monooksyetyl-di- [benzimidazyl-(2)]-etylen som er beskrevet i amerikansk patent nr. 2 604454, viser den uheldige egen-skap også i den vanlige lave konsentra-sjon å gi vaskemidlene en i alminnelighet gul, påfallende fargning, og det er lett å innse at fra forbrukerens standpunkt vil et vaskemiddel som bl. a. hovedsakelig skal tjene for hvit vask, men som selv ikke er fargeløst, ikke bare betraktes med mistro, men uten videre avslås. Vaskemiddel som som blekemiddel inneholder di-[benzimidazyl-(2)]-etylenforbindelsene av den til å begynne med angitte sammensetning, er praktisk talt fargeløse og viser et større hvithetsinnhold enn det tilsvarende vaskemiddel uten blekemidlet. Known optical brighteners of similar composition to those with formula (1), especially N-monooxyethyl-di-[benzimidazyl-(2)]-ethylene which is described in US patent no. 2 604454, show the unfortunate property also in the usual low concentration to give the detergents a generally yellow, striking colouring, and it is easy to realize that from the consumer's point of view a detergent such as a. shall chiefly serve for white wash, but which is not itself colourless, is not only regarded with distrust, but without further ado is rejected. Detergents containing the di-[benzimidazyl-(2)]-ethylene compounds of the initially stated composition as bleaching agent are practically colorless and show a greater whiteness content than the corresponding detergent without the bleaching agent.
I de følgende eksempler betyr deler, såfremt intet annet bemerkes, vektsdeler, prosentene vektsprosenter og temperatu-rene er angitt i Celsiusgrader. In the following examples, unless otherwise noted, parts mean parts by weight, the percentages are percentages by weight and the temperatures are given in degrees Celsius.
Eksempel 1. Example 1.
En tynn grøt, som består av 15 deler natriumlaurylsulfat, 15 deler natrium-do-decylbensol-sulfonat, 40 deler natrium-tri-polyfosfat, 25 deler natriumsulfat og 600 deler vann tilsettes en oppløsning av hydrokloridet av 0,04 deler av forbindelsen med formel A thin slurry consisting of 15 parts sodium lauryl sulfate, 15 parts sodium dodecylbenzene sulfonate, 40 parts sodium tripolyphosphate, 25 parts sodium sulfate and 600 parts water is added to a solution of the hydrochloride of 0.04 parts of the compound of formula
i 50 deler vann. Det pulverformede vaskemiddel som fåes av denne grøt ved tørk-ning i forstøvningstørrer viser et større hvithetsinnhold enn et vaskemiddel som er fremstilt på liknende måte som ikke inneholder imidazolforbindelsen. in 50 parts water. The powdered detergent obtained from this porridge by drying in a spray dryer shows a greater whiteness content than a detergent produced in a similar way which does not contain the imidazole compound.
Med dette vaskemiddel kan bomull vaskes som følger og samtidig blekes optisk: Man tilbereder en vaskevæske som på 1000 deler vann inneholder 5—10 deler av vaskemidlet og tilsetter 100 deler bomull ved romtemperatur, oppvarmer i 15 minutter til 80 til 90° C eller om ønskes til kok-ning, holder vaskebadet videre 15 til 30 minutter ved denne temperatur, fjerner bomullen fra væsken, skyller med varmt og flere ganger med koldt vann og tørker. With this detergent, cotton can be washed as follows and optically bleached at the same time: Prepare a washing liquid that contains 5-10 parts of the detergent in 1000 parts of water and add 100 parts of cotton at room temperature, heat for 15 minutes to 80 to 90° C or if desired to boiling, keep the washing bath for a further 15 to 30 minutes at this temperature, remove the cotton from the liquid, rinse with hot and several times with cold water and dry.
Også polyamidfibrer kan vaskes med dette vaskemiddel. Man går frem som ved bomull, men går med temperaturen ikke over 50° C. Polyamide fibers can also be washed with this detergent. You proceed as with cotton, but with the temperature not exceeding 50° C.
Forbindelsen med formel (14) kan fremstilles som følger: 108 deler a, |3-di-[benzimidazyl-(2)]-etylenmonosulfat oppløses i en blanding av 72 deler natriumhydroksyd og 900 deler The compound of formula (14) can be prepared as follows: 108 parts of a,|3-di-[benzimidazyl-(2)]-ethylene monosulphate are dissolved in a mixture of 72 parts of sodium hydroxide and 900 parts
85 pst.'s vandig etanol. Deretter tildryppes 85 percent aqueous ethanol. Then sprinkled
under god omrøring ved 70° C i løpet av 4 timer 84 deler glycerin-a-klorhydrin. Deretter vidererøres ennu to timer ved koke-temperatur under tilbakeløpskjøling. Nu nøytraliseres blandingen med fortynnet svovelsyre, det avdestilleres 600 deler etanol, 1200 deler vann tilsettes og den gule krystallgrøt avkjøles til 10° C. Etter fra-sugning vaskes resten med 400 deler iskoldt vann og tørkes. Man får ca. 118 deler av forbindelsen med formel (14), hvilken fluoriserer sterkt blå i ultrafiolett lys. with good stirring at 70° C. during 4 hours 84 parts of glycerin-a-chlorohydrin. It is then stirred for another two hours at boiling temperature under reflux cooling. The mixture is now neutralized with dilute sulfuric acid, 600 parts of ethanol are distilled off, 1200 parts of water are added and the yellow crystal slurry is cooled to 10° C. After suction, the residue is washed with 400 parts of ice-cold water and dried. You get approx. 118 parts of the compound of formula (14), which fluoresces strongly blue in ultraviolet light.
Eksempel 2. Example 2.
Man fremstiller et vaskemiddel på den måte som er beskrevet i eksempel 1, men anvender imidlertid i stedet for forbindelsen med formel (14), forbindelsen med formel A detergent is prepared in the manner described in example 1, but however, instead of the compound of formula (14), the compound of formula
Med de således erholdte vaskemidler kan bomull eller polyamidfibrer vaskes ifølge den i eksempel 1 angitte forskrift og blekes optisk. With the detergents thus obtained, cotton or polyamide fibers can be washed according to the regulations specified in example 1 and bleached optically.
Forbindelsen med formel (15) kan fremstilles som følger: 108 deler a,(3-di-[benzimidazyl-(2)]-etylen-monosulfat oppløses i en blanding av 72 deler natriumhydroksyd og 900 deler 85 pst.'s vandig etanol. Deretter tildryppes under god omrøring ved 70° C i løpet av 4 timer 42 deler glycerin-a-klorhydrin. Deretter vidererøres ennu 2 timer ved koke-temperatur under tilbakeløpskjøling. Nu nøytraliseres blandingen med fortynnet svovelsyre, det avdestilleres 600 deler etanol, 1200 deler vann tilsettes og den gule krystallgrøt avkjøles til 10° C. Etter fra-sugning vaskes resten med 500 deler iskoldt vann og tørkes. Man får ca. 91 deler av for bindelsen med formel (15) som fluoriserer sterkt blått i ultrafiolett lys. I stedet for a, (5-di-[benzimidazyl-(2)]-etylen-monosulfat kan også den tilsvarende mengde monosulfat [a-benzimidazyl- (2) ] - [p-N-p-oksyetyl-benzimidazyl-(2)]-etylen omsettes på den angitte måte med glycerinklorhydrin hvorved man får forbindelsen med formel (16). The compound with formula (15) can be prepared as follows: 108 parts of α,(3-di-[benzimidazyl-(2)]-ethylene monosulphate are dissolved in a mixture of 72 parts of sodium hydroxide and 900 parts of 85% aqueous ethanol. 42 parts of glycerine-a-chlorohydrin are then added dropwise with good stirring at 70° C over the course of 4 hours. Stirring is then continued for another 2 hours at boiling temperature under reflux cooling. Now the mixture is neutralized with dilute sulfuric acid, 600 parts of ethanol, 1200 parts of water are distilled off is added and the yellow crystal porridge is cooled to 10° C. After extraction, the residue is washed with 500 parts of ice-cold water and dried. You get approx. 91 parts of the bond of formula (15) which fluoresces strongly blue in ultraviolet light. Instead of α, (5-di-[benzimidazyl-(2)]-ethylene monosulfate, the corresponding amount of monosulfate [α-benzimidazyl-(2)] - [p-N-p-oxyethyl-benzimidazyl-(2)]-ethylene is reacted in the indicated manner with glycerine chlorohydrin whereby the compound of formula (16) is obtained.
hvori m og n hver betyr et helt tall med en verdi på høyst 2. where m and n each mean an integer with a value of at most 2.
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DE3121960A1 (en) * | 1981-06-03 | 1982-12-23 | Bergische Stahl-Industrie, 5630 Remscheid | Brake ring securing element |
DE3149107A1 (en) * | 1981-12-11 | 1983-06-23 | Bergische Stahl-Industrie, 5630 Remscheid | "ARRANGEMENT FOR FASTENING BRAKE RINGS" |
DE3215357C2 (en) * | 1982-04-24 | 1993-10-14 | Bergische Stahlindustrie | Arrangement for fastening split brake disc rings to wheels of rail vehicles |
GB8925101D0 (en) * | 1989-11-07 | 1989-12-28 | Lucas Ind Plc | Improvements relating to wheels incorporating braking discs |
US5101940A (en) * | 1989-11-07 | 1992-04-07 | Sab Sabco (Holdings) B.V. | Vehicle braking disc secured with an assembly of pine and blocks |
AT514902A1 (en) | 2013-09-24 | 2015-04-15 | Siemens Ag Oesterreich | Rail wheel with wheel brake disc |
CN115419666B (en) * | 2022-11-04 | 2023-01-10 | 龙口市海润汽车配件有限公司 | Dust type brake disc |
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FR2108226B1 (en) | 1975-04-18 |
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DE2047513B2 (en) | 1973-09-13 |
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DE2047513C3 (en) | 1974-04-04 |
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