Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Ethyl benzol

Synonyms AI3-09057 BRN 1901871 CCRIS 916 EBz EINECS 202-849-4 Etbz Ethyl-benzol NCI-C56393 NSC 406903 Phenylethane UN 1775. [Pg.561]

Die Bestrahlung (5 h, — 10°, Quecksilberlampe) von 2-Jod-2-nitro-adamantan in 2-Propanol/3-Chlor-1-ethyl-bzw. 4-Chlor-l -ethyl-benzol liefert das 2-Nitro-adamantan zu 62 bzw. 60%. Als Nebenpioduktc wer-den 2-Oxo-adamantan, Aceton und 2- bzw. 4-Ethyl-l-jod-benzol gebildet2 ... [Pg.224]

Ethyl-benzol 2-Ethyl-l-nitro- + 4-Ethyl-l-nitro-henzoh 76% (44 56)... [Pg.281]

Bei der Nitrierung von Benzol, Toluol, Ethyl-benzol, tert.-Butyl-benzol und Chlorbenzol mit Titan(IV)-nitrat in Tetrachlormethan entstehen die entsprechenden 2-Nitro- bzw. 4-Ni-tro-Derivate in ausgezeichneter Ausbeute4,5 ... [Pg.315]

Cl% y -C00H pT 0CH3 0,N 0 NaNj/HjSO /Benzol, 50°, 5h t. SOC12 Riickfl. bis zur klaren Losung + 15 min 2. NaN3/Aceton/H20, 0°, 15 min. dann mil H20 verdunnen und robes Azid isolieren 3. Azid/H3C—C0OH/H3O Riickfl., > 30 min 3-Chlor-l- (2-amino-ethyl) -benzol 2-Amino-6-nitro-benzoesaure- methylester 85 84 2 3... [Pg.1166]

In einigen Fallen [z.B. bei der Reduktion von Benzyl-trimethyl-ammonium-jodid und von (l-Phenyl-ethyl)-trimethyl-ammonium-jodid] wird jedoch teilweise Oder bevorzugt an-stelle von Methan ein anderer Kohlenwasserstoff abgespalten [z.B. Toluol bzw. Ethyl-benzol], Die Methode ist also nicht allgemein anwendbar. In den folgenden Fallen erhalt man jedoch gute Ausbeuten an Demethylierungsprodukt ... [Pg.1220]

CH3)2C6H2ts.C6H2(N02)3]2 mw 592.48, N 14.19%. The following isomer.s are described in the literature 2,4-Bis(2 4 ,6 -trinitrophenyl tbio)m 1,3 dimetbylbenzene[called 2.4-Bis(2.4.6 -trinitro-phenylmercapto) l. 3 dim ethyl-benzol or 2.4-Dimethyl-dithioresorcin-dipikrylather in Ger], yel crysts(from AcOH), mp 211-213° was obtd by warming 2,4-dithio-l,3 dimethyI-benzene with 2 mols of picryl chloride in ale (Refs 1 2,p 142). Its expl props were not detd... [Pg.155]

Chlor-ethan- -diethylester Xll/1, 427, 443 2-Chlor-ethan- -diphenylester XII/1, 147, 151, 426 2-Chlor-ethen- -dialkylester XII/1, 506 2-Chlor-ethen- -dibutylester XII/1, 425 Chlor-ethin- -dialkylester E2, 373 Chlor-cthin- -dimethylester El, 574/ 2-Chlor-2-ethoxy-ethen- -chlorid-ethylester E2,337 2-Chlor-2-ethoxy-ethen- -dichlorid E2,328. 337 4-(2-Chlor-ethyl)-benzol- Xll/1, 368, 377 2-Chlor-l-ethyl-1.3-butadien-l- -dichlorid XII/1,... [Pg.1030]

Hydroxy-ethoxy)-8-methoxy- E14a/1, 545 [l,4-(2-OH —ethyl)-benzol/Methanol 4-Elektrolyse]... [Pg.916]

Outgassing analyses of adhesives containing solvents detect mainly ethyl acetate, 2-butanone, ethyl benzole, xylene, and propylene glycol, Fig. 12, in particular MDI and TDI in the PUR adhesives and adhesives crosslinked with isocyanates. In view of the fact that the TLVs differ in some cases by a factor of one thousand (xylene TLV 440 mg m , MDI TLV 0.05 mg m ), the risks involved in use of PUR adhesives must be classified as more significant. [Pg.256]

Benzole and ethene are transferred to a reaction vessel, in which ethyl benzole is produced at 85-95 °C and normal pressure. In the downstream section of the facility, this substance is then dehydrated to make styrene, which is collected in a storage tank. [Pg.39]

In contrast to alkylation of benzole, dehydration of ethyl benzole is endothermic. This process is carried out at high temperatures of 550-600 °C by means of heterocatalysis. The resulting styrene, to which a polymerization inhibitor has been added, is then vacuum-distilled before further processing. This complex purification procedure is made necessary by the close proximity of the boiling points of ethyl benzole and styrene. [Pg.40]

Solvents used for dewaxing are naphtha, propane, sulfur dioxide, acetone—benzene, trichloroethylene, ethylenedichloride—benzene (Barisol), methyl ethyl ketone—benzene (benzol), methyl -butyl ketone, and methyl / -propyl ketone. Other solvents in commercial use for dewaxing include /V-methylpyrrolidinone, MEK—MIBK (methyl isobutyl ketone), dichloroethane—methylene dichloride, and propfyene—acetone. [Pg.211]

Cyan-Mthert m. cyanic ester. -Mthyl, n. ethyl cyanide, -bad, n. cyanide bath. -baryum,n. barium cyanide, -benzol, n. cyanobenzene. -bromid, n. cyanogen bromide, -calcium, n. calcium cyanide, -chlorid, n. cyanogen chloride. -doppelsalZt n. double cyanide. [Pg.95]

The reasons for mercury pesticide poisoning deserve especially close analysis. OMPs were detected not only in cereals where they could be found since they were used, but also in fish products. We must keep in mind that according to existing public health standards, in principle, granosan (active ingredient ethyl mercury chloride), and especially OMPs (in the mixtures mercury benzol and mercury hexane, the active ingredient is also ethyl mercury chloride), presence in food products is banned [5]. Therefore, the notation exceeds MPL is not appropriate. [Pg.82]

Bei der Diazotierung von 2-Amino-4,5-dicyan-imidazol erhalt man das exploslonsgefahrliche 2-Diazoniono-4,5-dicyan-imidazolat, das z. B. mit Benzol zu 4,5-Dicyan-2-phenyl-imidazol und mit 1,2-Dichlor-ethan zu 2-Chlor-l-(2-chlor-ethyl)-4,5-dicyan-imidazol umgesetzt werden kann993. [Pg.170]

Bei der Bestrahlung von 1,2-Diamino-benzol in Essigsaure oder Propansaure in Gegenwart von Sauerstoff erhalt man statt der erwarteten Oxidationsprodukte 2-Methyl- bzw. 2-Ethyl-benzimidazol (73 bzw. 62%)228... [Pg.270]

Aus 3-Amino-2-benzoyl-4,4,4-trichlor-2-butensaure-nitril und 1,2-Diamino-benzol in Pyridin wird 2-(l-Cyan-2-oxo-2-phenyl-ethyl)-benzimidazol (75% Schmp. 185°) erhalten152. [Pg.297]

Einen Spezialfall stellt die Reaktion von Benzoesaure-amid-(3-chIor-propanoyloximid) mit Aminen in Benzol dar. Unter Substitution des Chlor-Atoms durch die Amino-Gruppe mil anschlieBendem Ringschlufi werden 5-(2-Amino-ethyl)-3-phenyl-l, 2,4-oxadiazole214 erhalten. [Pg.475]

Lithium-2-propan-nitronat reagiert mit 4-(l-Azido-l-methyl-ethyl)-l-nitro-benzol in Ge-genwart von Phosphorsaure-bis-[dimethylamid] zu 4-Nitro-l-(2-nitro-l,1,2-trimethyl-pro-pyl)-benzol (92 %)2 l0. [Pg.181]

A, A. Aroyan, B.T. Garibdzhanyan, S.A. Sarkisyan u. G.M. Slepanyan, Arm. Khim. Zh. 20, (1968) C.A. 69, 10144 (1968) dort auch Wciterreaktion mit Thionylchlorid in Benzol zu N,N- ffis[2-chlor-ethyl]-5-brom-2-methoxy-benzylamin (98 %), sowic wcitcrc Bcispiclc. [Pg.671]

Mit Tryptamin in Benzol/Tetrahydrofuran (1 1) erhalt man analog 3-[2-(4-Acetoxyme-thyl-2-cyclohexen-l-ylamino)-ethyl]-indol. [Pg.719]

Auch die Alkalimetalle selbst konnen als Katalysator eingesetzt werden8,9 (s.a. oben Herstellung von l-Ethyl-piperidin) sie bilden mit dem Amin das katalytisch wirksame Alkalimetall-amid. So hat sich fur die Addition von Diethylamin an 4-Ethenyl-4-methyl-benzol zu l-(2-Diethylamino-ethyl)-4-methyl-benzol die Verwendung von Lithium (14mol%) als geeignet erwiesen8. [Pg.756]

H3C NH Na/H9C4—OH Ruckfl. 1- (l-Amlno-ethyl)-2. 4,6-trimethyl-benzol 85 4... [Pg.913]


See other pages where Ethyl benzol is mentioned: [Pg.1035]    [Pg.486]    [Pg.108]    [Pg.379]    [Pg.352]    [Pg.353]    [Pg.506]    [Pg.520]    [Pg.975]    [Pg.1035]    [Pg.486]    [Pg.108]    [Pg.379]    [Pg.352]    [Pg.353]    [Pg.506]    [Pg.520]    [Pg.975]    [Pg.42]    [Pg.96]    [Pg.285]    [Pg.324]    [Pg.475]    [Pg.14]    [Pg.65]    [Pg.128]    [Pg.129]    [Pg.150]    [Pg.328]    [Pg.347]    [Pg.387]    [Pg.464]    [Pg.629]    [Pg.818]    [Pg.913]   
See also in sourсe #XX -- [ Pg.311 ]




SEARCH



Benzol

Benzole

Benzoles

Ethyl benzole

© 2024 chempedia.info