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Trihalogens

Dihalogen- und Trihalogen-methan-Derivate werden zu Methanen hydrodehaloge-niert. [Pg.514]

Tetrachlor-386, 390, 617, 663, 671 Tosyloxy- 660 Triathoxy-phenyl- 446 Triaryl- 561 Tribrom- 387 Trichlor- 390, 617, 671 Trichlor-nitro- 617 Trichlor-phenyl- 390, 532, 540 Trichlor-phenylthio- 556 Trihalogen- 514 Trijod- 387... [Pg.909]

The interatomic distance values given are stated to hold for hexahalogen, rym-trihalogen and -dihalogen benzenes. We expect the distances in these different compounds to be different, however and investigation of these and other halogen compounds is under way in this Laboratory. De Laszlo has also reported values of C-Br and C-I distances in ethylenic and acetylenic compounds in a letter to Nature, 130, 474 (1936). [Pg.205]

In the haloform reaction, methyl ketones (and the only methyl aldehyde, acetaldehyde) are cleaved with halogen and a base. The halogen can be bromine, chlorine, or iodine. What takes place is actually a combination of two reactions. The first is an example of 12-4, in which, under the basic conditions employed, the methyl group is trihalogenated. Then the resulting trihalo ketone is attacked by hydroxide ion ... [Pg.813]

Bosma T, E Kruizinga, EJ de Bruin, GJ Poelarends, DB Janssen (1999) Utilization of trihalogenated propanes by Agrobacterium radiobacter ADI through heterologous expression of the haloalkane dehalogenase from Rhododoccus sp. strain ml5-3. Appl Environ Microbiol 65 4575-4581. [Pg.370]

Hickey WJ, DD Focht (1990) Degradation of mono-, di-, and trihalogenated benzoic acids by Pseudomonas aeruginosa JB2. Appl Environ Microbiol 56 3842-3850. [Pg.479]

Chen PH, Richardson SD, Krasner SW, Majetich G, Glish GL (2002) Hydrogen abstraction and decomposition of bromopicrin and other trihalogenated disinfection byproducts by GC/ MS. Environ Sci Technol 36(15) 3362-3371... [Pg.129]

Mono, di, trihalogenated aliphatic hydrocarbons Halogenated aromatic hydrocarbons HO—... [Pg.199]

Bei der Abspaltung eines Halogen-Atoms aus 1-substituierten 4,5-Dihalogen-imidazolen oder von zwei Halogen-Atomen aus 1-substituierten 2,4,5-Trihalogen-imidazolen erhalt man selektiv die 1-substituierten 4-Halogen-imidazole493-496 z.B. ... [Pg.103]

Treatment of a series of metal acetylacetonates with the N-halogen suc-cinimides in boiling chloroform afforded the trihalogenated metal chelates in high yields. The use of bromine or iodine monochloride in buffered acetic acid also yielded the bromo- and iodochelates (7). [Pg.84]

AOP, advanced oxidation processes AOX, organically bound halogens absorbable on activated carbon GAC, granular activated carbon THM, trihalogen methane. [Pg.393]

The detection limits for the trihalogenated compounds are all below the lOpg L-1 level. [Pg.322]

Figure 3-14. Schematic drawing of the photoinitiated reaction of Br with I2. Hydrogen removal is rapid, relative to the characteristic time scales of the motions of the heavier nuclei. Photoexcitation at 220 nm yields primarily Br(2P3/2), though some Br(2P1/2) is also produced. As shown on the right, reaction transpires via the vibrationally excited trihalogen intermediate. Figure 3-14. Schematic drawing of the photoinitiated reaction of Br with I2. Hydrogen removal is rapid, relative to the characteristic time scales of the motions of the heavier nuclei. Photoexcitation at 220 nm yields primarily Br(2P3/2), though some Br(2P1/2) is also produced. As shown on the right, reaction transpires via the vibrationally excited trihalogen intermediate.
Die bei 20° mit N-substituierten Trihalogen-acetamidinen entstebenden 1 1-Addukte liefem bei 80-180° unter Abspaltung von Chlorwasserstoff (welcher vorteilhaft durch schwaches Evakuieren entfernt wird) Phosphorsaure-[l-alkyl(aryl)imino-2,2,2-trihalogen- ethylimid)-trichlori de (>90°/o)l06 l09 ... [Pg.801]

Die Reaktion verlauft bei N-Aryl-trihalogen-acetamidinen in siedendem Benzol geniigcnd schnell108,109, wah-rend die N-Alkyl-Derivate zweckmaBig auf 130-180° erhitzt werden106, 107. [Pg.801]

See other pages where Trihalogens is mentioned: [Pg.199]    [Pg.242]    [Pg.362]    [Pg.74]    [Pg.18]    [Pg.258]    [Pg.32]    [Pg.548]    [Pg.548]    [Pg.65]    [Pg.84]    [Pg.86]    [Pg.197]    [Pg.170]    [Pg.170]    [Pg.37]    [Pg.392]    [Pg.681]    [Pg.85]    [Pg.85]    [Pg.86]    [Pg.87]    [Pg.89]    [Pg.207]    [Pg.143]    [Pg.150]    [Pg.867]    [Pg.885]    [Pg.885]    [Pg.1048]    [Pg.1051]    [Pg.1121]   
See also in sourсe #XX -- [ Pg.85 , Pg.87 ]



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Trihalogenated methyl

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