Ethyl-2-methyl-pentane

Alkylate is a gasoline blending component with exceptional antiknock properties, which seems to avoid the legislative pressure. Alkylate consists exclusively of isoalkanes and is obtained from the C3-C4 cut of the FCC units. In many instances, isobutene from the C3-C4 fraction is transformed selectively with methanol into methyl tert-butyl ether (MTBE). Therefore, a mixture of 1-butene and 2-butene is used for alkylation purposes. The other reactant is isobutane. The major constituents of the alkylate are 2,2,3-, 2,2,4-, 2,3,3- and 2,3,4-trimethyl pentane (TMP). Besides, the alkylate contains other C8 isoalkanes, such as dimethyl hexane (DMH), 3-ethyl 2-methyl pentane, methyl heptane and ethyl hexane, and even isoalkanes with carbon numbers that are not multiples of 4. 

Verwcndet man in der 3. Stufe des angegebenen Formelschemas einen Aldehyd anstelle des Alkyl-bromids, so erhalt man einen jS-Amino-alkohol, z. B. durch Metallierung von (2-Anilino-ethyl)-quecksilber-bromid (aus Ethen durch Aminomercurierung) mit Phenyllithium und anschlicBende Umsetzung mit 2-Methyl-propanal l-Anilino-3-hydroxy-4-methyl-pentan (70%)2. 

Acetone, methyl ethyl ketone (2-butanone) and methyl isobutyl ketone (4-methyl-pentan-2-one) (6.8 mmol/kg bw for 3 days) increased the hepatotoxicity of carbon tetrachloride to Sprague-Dawley rats (Raymond Plaa, 1995a) this enhancement of toxicity was coincident with increased microsomal aniline hydroxylase activity (Raymond Plaa, 1995b). In addition to the effect on cytochrome P450, acetone, but not the other ketones, increased basal canalicular membrane fluidity, as measured by fluorescence polarization of 1,6-diphenyl-1,3,5 -hexatriene or 1 - [4-(trimethylammoniumphenyl)-6-phenyl] -1,3,5 -hexa-triene (Raymond Plaa, 1996). 

Formaldehyde, acetaldehyde, acetone, and carbon monoxide were common combustion products of the four hexanes. Propionaldehyde, n-butyraldehyde, acrylic aldehyde, crotonic aldehyde, and methyl ethyl ketone were all found as intermediates in the combustion of n-hcxane. Acetaldehyde and acetone were prominent and propionaldehyde and acrylic aldehyde were present among the intermediates from 2-methylpentane. Acetaldehyde and methyl ethyl ketone were peculiarly characteristic of 3-methyl-pentane and acetaldehyde, acetone, and pivalic aldehyde were characteristic of 2,2-dimethylbutane. In other words, the intermediate monocarbonyl combustion products... 

Film Thickness Oven Carrier Injection Detector 60m x 0.32 mm I.D. J WP/N 123-1063 1.0 micron 35 C (Isothermal) Helium 34 cm/sec 1.0 uL Split 1 50 FID 2. Propylene Oxide 3. Isopropanol 4. VInytidene Chloride 5. Dlmethoxy Methane 6. Nftromethane 7. Methyl Ethyl Ketone 8. 2-Methyl Pentane 9. Butylene Oxide 10. 2-Butanol 11. 1,1,1-Trichtoroethane... 

Ligand Hex-l-ene % Isomerised hexenes % 2-ethyl- pentanal % 2-methyl- pentanal % Heptanal % Conversion % Selectivity to aldehydes % n i ratio... 

MWP. However, the quantity of chlorinated hydrocarbons during MWP degradation was higher than 3P/PVC/PET and 3P/PVC degradation liquid products. Gas chromatography equipped with an atomic emission detector (GC-AED), was used for selective detection of Cl in the liquid products. As can be seen from Figure 18.19, the presence of PET produced the additional chlorinated hydrocarbons than 3P/PVC. The liquid products were analyzed by GC-MS to identify the compounds. The presence of chlorinated compounds with model and MWP were observed as 2-chloro-2-phenyl propane, 2-chloro-2-methyl propane, 2-chloro-2-methyl pentane, and a-chloro ethyl benzene. 

C6H120 ethyl isopropyl ketone 565-69-5 191.81 10.309 2 8714 C6H13F 3-fluoro-2-methyl pentane 62127-33-7 159.03 7.330 2... 

C6H13N02 1-nitro-4-methyl pentane. .. 285.49 17.221 2 9044 C6H1402 2-ethyl-1,3-butanediol 66553-17-1 248.52 17.437 2... 

Fig. 7.8. The effect of two types of anti-knock on the characteristics of two-stage ignition measured in a rapid compression machine. Ti is the time from the end of compression to the cool-flame is the subsequent time to the true ignition AT is the temperature rise over the cool-flame. Conditions 0.5 stoichiometric mixture of 2-methyl pentane and air at 720 K and total concentration 3.2 x 10 mol cm . TEL (tetra-ethyl lead) affects the second stage, but not ti, NMA (N-methyl aniline) affects both ti and t2. From [42],...

Bromo-2,2-dimethyl-l -(1 -hydroxy-1-methyl-ethyl)- 1308 Pentane... 

D.45A) (D.45A) 2,3-Pentanedione, pentane-2,3-dione, ethyl methyl diketone, acetyl propionyl 600-14-6] FEMA 2841... 

For the preparation of diazoethane (2-20) 4-(Ar-ethyl-AT-nitrosoamino)-4-methyl-pentan-2-one (A nitroso-)ff-ethylamino-isobutyl methyl ketone, 2.55) is commercially available (Fluka). The method was developed by Adamson and Kenner (1937). The... 

Properties Colorless to white, odorless, tasteless crystals. Mp 161°C bp decomposes H-ti/2 16 years at 25°C and pH 7 log 2.96 (calculated) log 3.20 (calculated) S soluble in acetone, benzene, 1,4-dioxane, ethanol, ethylbenzene, ethyl ether, hexane, methyl ethyl ketone, pentane, toluene, xylene and many other common organic solvents but is only moderately soluble in methanol, isopropanol and some oils S 17 mg/L at 20°C. 

The basic product of the reaction is 2-methyl-butane-3-one (methylisopropyl ketone) in the absence of water, whereas pivalic acid represents the basic product in the presence of water at 70°C and 8 atm partial CO pressure. Conversion of alkane (36%) was reached at 1 h of the reaction time vmder conditions of batch reactor (81). Under similar conditions n-pentane converts into a mixture of Ce-aldehydes [2-ethyl-butyraldehyde (5%), 2-methyl-pentanaldehyde (3%)] and ketones [2-methyl-pentane-3-one (11%) and 3-methyl-pentane-2-one (5%)] at 24% total conversion of n-pentane (82). In the presence of water n-pentane gives a mixture of three acids 2-ethyl-butjrric acid, 2-methyl-pentanoic acid, and 2,2-dimethyl-butyric acid at 150-200°C, 10 atm CO pressure, and 20% total n-pentane conversion. Carbonylation of propane gives rise to a mixture of isobutyric acid and isobutyraldehyde at 150°C, 10 atm CO pressure, and 22% propane conversion, isobutyric acid being the main product. 

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