Methyl-ethylbenzenes

If the substrate is enantioselective, as for example meta-methylstyrene, the satellites split into (at least) two separate resonances, respectively, for the CH2- and the CH3-resonances of the resulting product meta-methyl-ethylbenzene (Fig. 12.20). 

Chen, C.S. Zoltek, J., Jr (1995) Organic priority pollutants in wetland-treated leachates at a landfill in central Florida. Chemosphere, 31, 3455-3464 Chin, B.H., McKelvey, J.A., Tyler, T.R., Calisti, L.J., Kozbelt, S.J. Sullivan, L.J. (1980) Absorption, distribution, and excretion of ethylbenzene, ethylcyclohexane, and methyl-ethylbenzene isomers in rats. Bull, environ. Contam. Toxicol., 24, 477-483 Cole, R.H., Frederick, R.E., Healy, R.P. Rolan, R.G. (1984) Preliminary findings of the priority pollutant monitoring project of the nationwide urban runoff program. J. Water Pollut Control Fed., 56, 898-908... 

The inifer technique is specific for cationic and radical polymerizations. The most frequently used inifers in the first case are 1-chloro-l-methyl-ethylbenzene (a) 1,4-bis( 1-chloro-l-methylethyl)benzene (6) and l,3,5-tris(l-chloro-l-methyl)benzene (c)... 

In terms of the individual compounds found in the condensable products, as with conventional pyrolysis, a-alkenes alkanes and dialkenes were the most abundant compounds. A large number of other aliphatic and aromatic compounds ranging from C3 to approximately 55 were also found, including methylcyclopentene, benzene, cyclohexene, toluene, ethylbenzene, xylene, propylbenzene and methyl-ethylbenzene. The analysis also showed that the condensables obtained at 500 and 700°C, although possessing similar levels of cleavage, showed important differences in the individual compounds present [85],... 

Preparation and characterization of shape-selective ZSM-5 catalyst for parn-methyl ethylbenzene production with toluene and ethylene... 

Pora-vinyltoluene is a kind of important feedstoek for produeing quality polymers, which may replace styrene monomer [1]. f ora-vinyltoluene is produeed by the dehydrogenation of para-vasAhyX ethylbenzene [2]. Para-methyl ethylbenzene may be obtained by alkylation of toluene with etltylene. The main reactions involved in this alkylation process are as follows ... 

As the isomerization reaction among three kinds of methyl ethylbenzene isomers (K3, K4) is much easier than alkylation reaction of toluene with ethylene (Kl, K2), shown in Figure 1, the mixture of / ara-methyl ethylbenzene, orth-vasOsy ethylbenzene... 

Zeolite materials for catalyzing alkylation of toluene Catalytic performance of a variety of acidic zeolites, with different stractural and acidic properties, are compared in the methyl ethylbenzene (MEB) synthesis by allgrlation of toluene. These zeolites are the MCM-22, Beta, SAPO-11, MOR and the ZSM-5 with different Si/Al ratio. Among these zeolites, ZSM-5 and SAPO-11 fall into the category... 

In order to decrease ZSM-5 acidic strength, a little of metallic oxides, basic La203 or MgO, were loaded over Si02-CLD/ZSM-5. This may effectively reduce the side-reactions of both disproportionation and dealkylatioa Moreover, the amount of loaded La203 or MgO over ZSM-5 relates to catalytic activity and selectivity. The selectivity of /lara-methyl ethylbenzene and the selectivity of total methyl ethylbenzene increase with... 

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