PREPARATION OF ETHYL BENZENE 优质文献 相似文献Process for the preparation of ethyl benzene Ethyl benzene is produced in a catalyst bed under 0.25 to 50 atmospheres of pressure and at temperatures in the range of 50 C., using as the catalyst a mol... ...
PREPARATION OF ETHYL BENZENEPURPOSE:To prepare ethylbenzene in high yield with suppressive undersirable side reactions by alkylation of benzene with ethylene at low temp. using catalysts such as silver or copper supported on a solid acid such as Y-type zeolite.TAKAHASHI HIDEYUKI...
PURPOSE:To prepare ethylbenzene useful as a raw meterial of styrene monomer, in high conversion, by the low-temperature, liquid-phase reaction of benzene with ethylene in the presence of hydrogen and a long-life catalyst comprising a metal supported by zeolite. CONSTITUTION:Ethylbenzene is prepared...
ethylene and a Friedel-Crafts catalyst are continuously introduced into an alkylation reaction zone kept at a temperature of 100-180 deg.C and a pressure necessary for keeping the reactants in the liquid phase at a molar ratio between the ethyl content and the benzene content of 0.3-0.9 to ...
Disulfides are widely found in natural products and find a wide range of applications in life sciences, materials chemistry and other fields. The preparation of disulfides mainly rely on oxidative couplings of two sulfur containing compounds. This strategy has many side reactions and other shortcoming...
This invention relates to a process for the preparation of esters and primarily for the preparation of esters of hydroxyacetic acid. An object of the present invention is to provide a process for the esteriflcation of hydroxyacetic acid, wherein part or all of the water of esteriflcation is....
This work determined that southern yellow pine wood can almost be completely dissolved in the quaternary ammonium ionic liquid tetrabutylammonium acetate with dimethyl sulfoxide (in a 2:8 mass ratio), after minimal grinding, upon heating at 85 °C for
The class of title pyrroles, important intermediates in porphyrin synthesis, have been prepared via the Barton and Zard method. The benzyl isocyanoacetate used in the synthesis was in turn prepared in an efficient and inexpensive 3-step piocedure from glycine. DOI: 10.1080/00397919508011369 被引...
Ethylidene diacetate is prepared by reacting at elevated temperature methyl acetate or dimethyl ether with carbon monoxide and hydrogen in the presence of an effective amount of a catalyst system comprising cobalt and, as promoter, nitrogen or phosphorus and a halide selected from iodide and bromide....
Very recently, we have succeeded in preparation of monodisperse PNVF particles by dispersion polymerization in methanol. 12 Among hydro- philic polymers examined for the stabilizer of the dispersion polymerization, poly(2-ethyl-2- oxazoline) (PEtOZO) and styryl-type poly(2- methyl-2-oxazoline) ...