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Other Alkyl Amines

Mitsubishi Rayon and Sumitomo Chemical in Japan make t-butylamine via the addition of hydrogen cyanide to isobutylene in acidic media, followed by hydrolysis of the resulting t-butylformamide [see Eq. (14.9)]. Average yields are about 85% based on isobutylene. Rohm and Haas in the United States makes t-octylamine from hydrogen cyanide and diisobutylene by a similar route116. [Pg.313]

Direct amination of olefins is a special case and has been successfully developed for only a few amines. BASF has developed proprietary technology for the direct amination of isobutylene to yield t-butylamine [see Eq. (14.10)], and has been operating a commercial plant in Western Europe since 1993116. [Pg.313]

A manufacturing process that is specific for cyclohexylamines is the catalytic hydrogenation of anilines or phenols in the presence of ammonia. The catalytic hydrogenation of aniline is the classical method for the manufacture of cyclohexylamine. Hydrogenation of phenol in the presence of ammonia produces predominantly cyclohexyl or dicyclohexylamine depending upon catalysts, reaction conditions and reactant ratios116. [Pg.313]

In the United States in 2001 the overall outlook for methylamines is very good. Production should remain strong as applications in the largest market segments are at or above the growth rates for GDP247. Raw material supplies of ammonia and methanol are abundant, but the price for natural gas has been [Pg.313]

Worldwide growth in alkylamines demand should average a modest 2% to 3% annually from 2000 through 2004116. In the United States growth is expected to increase slightly to 3.3% per year between 2003 and 2006. Demand in the United States is shown in Table 14.4247. [Pg.314]


Some of the other alkyl amines and their uses are ... [Pg.316]

Ar-[l-(-Piperidylethyl)indolin-6-yl](2-[(4-pyridinylmethyl)amino](3-pyridyl)]carbox-amide, (IV), and other alkyl amine derivatives prepared by Chen (6) were effective as VEGF inhibitors and were used in the treatment of angiogenesis-mediated diseases. [Pg.509]

The effects of gaseous impurities were also examined. Mass spectroscopy reveals that the methyl-substituted amines contain traces of other methyl-substituted amines. While there may be an effect on PL intensity from these other alkylated amines, their PL signatures are sufficiently different (Fig. 2) as to imply domination by the principal gas present. Besides these gases, we assessed the effects of O2 and H2O vapor. Oxygen decreases PL... [Pg.395]

The examples in the preceding section, of the flotation of lead and copper ores by xanthates, was one in which chemical forces predominated in the adsorption of the collector. Flotation processes have been applied to a number of other minerals that are either ionic in type, such as potassium chloride, or are insoluble oxides such as quartz and iron oxide, or ink pigments [needed to be removed in waste paper processing [92]]. In the case of quartz, surfactants such as alkyl amines are used, and the situation is complicated by micelle formation (see next section), which can also occur in the adsorbed layer [93, 94]. [Pg.478]

Ethoxylation of alkyl amine ethoxylates is an economical route to obtain the variety of properties required by numerous and sometimes smaH-volume industrial uses of cationic surfactants. Commercial amine ethoxylates shown in Tables 27 and 28 are derived from linear alkyl amines, ahphatic /-alkyl amines, and rosin (dehydroabietyl) amines. Despite the variety of chemical stmctures, the amine ethoxylates tend to have similar properties. In general, they are yellow or amber Hquids or yellowish low melting soHds. Specific gravity at room temperature ranges from 0.9 to 1.15, and they are soluble in acidic media. Higher ethoxylation promotes solubiUty in neutral and alkaline media. The lower ethoxylates form insoluble salts with fatty acids and other anionic surfactants. Salts of higher ethoxylates are soluble, however. Oil solubiUty decreases with increasing ethylene oxide content but many ethoxylates with a fairly even hydrophilic—hydrophobic balance show appreciable oil solubiUty and are used as solutes in the oil phase. [Pg.256]

Unsymmetrically substituted secondary and tertiary amines are named as iV-substituted primary amines. The largest alkyl group is chosen as the parent name, and the other alkyl groups are N-substituents on the parent (jY because they re attached to nitrogen). [Pg.918]

Using other alkylated benzene hydrocarbons, e.g., amyl-, hexyl-, octyl-, or nonylbenzene, similar surface-active phosphinic acids are formed by reaction with PC13 in the presence of anhydrous aluminum trichloride. The resulting alkylarylphosphinic acids form stable salts with primary, secondary, or tertiary hydroxy amines or aromatic amines [166,171]. [Pg.587]

In the previous analysis for the second quadrant amines, there was evidence that the presence of an aromatic ring (BzAM) increased competition with the deactivating intermediate(s) and significantly the amount of DHQ obtained. The study was thus extended to other aromatic amines aniline (AN), 2-ethylaniline (2-ETAN), 3-ethylaniline (3-ETAN) and N-ethylaniline (N-ETAN). These amines are not classified in the literature analysis of amine properties (16), although aniline and pyridine were studied by statistical analysis of their solvent properties and classified in the same sector (16). By analogy, we hypothesize that these model aromatic amines should be classified in the second sector. Thus, they may aid in an understanding of the specific role of the aromatic ring and the effect of an alkyl substituent. [Pg.106]

By means of substitution reactions, derivatives containing alkoxide, alkyl, amine, and other groups can be prepared as illustrated by the following equations ... [Pg.510]

This method is essentially that described by Pollard and Par-cell.8 No other procedure appears to have been used to prepare N-(2-bromoallyl)ethylamine. A number of N-(2-haIoaIIyl)alkyl-amines have been prepared by treatment of a 2,3-dihalopropene with a primary alkylamine in water,8-4 ether,8-4 or benzene.5... [Pg.5]

R2NH, which is a ligand to the cluster, can be replaced by other aliphatic amines [70, 71] or pyridine [72], The exo amine can be alkylated [70]. [Pg.119]

Furthermore, Weiss and coworkers66 developed also a method of diazotizing aminocyclopropenium salts with nitrosyl salts in the presence of two equivalents of trimethylchlorosilane to trap the water produced. In a modification of this method the authors showed that the use of the terf-butylated amine was an advantage, as the risk of oxidation of the alkylated amino group by the nitrosyl ion is less than in the case of the primary amine. This method would also appear to be suitable for the diazotization of other sensitive amines. [Pg.640]


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Amines alkylation

Other Alkylations

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