(1) Final product can be obtained by alkylation of trimer.

(2) The alkylation of isoparaffin with olefin is an important process of petroleum processing.

(3) These derivatives are readily obtained by alkylation of 2 - mercaptopyridine and alkyl halides under alkaline conditions.

(4) The synthesis methods of chalcone and benzene ring alkylation are discussed.

(5) The alkylation of anisole with tert - butanol in hexane solution was investigated by using molybdenum pentachloride.

(6) An Efficient NH2SO3H-catalyzed direct alkylation of active methylene compounds with benzylic and allylic alcohols has been reported.

(7) The alkylation of aniline with isopropanol was studied over HY molecular sieve catalysts.

(8) This paper studied the catalytic N - alkylation of acetanilide with polyvinyl chloride - pyridine resin.

(9) Cesium carbonate catalyzed O - alkylation of phenol to synthesize alkly aryl ethers.

(10) Alkanes undergo reaction such as cracking, alkylation, oxidation, halogenation, nitration and so on.

(11) A method concerning the selective alkylation of phenolic group in berbamine by means of dialkyl oxalate was reported.

(12) The alkylation and acylation for hydroxyl group linked with nitrogen were accomplished to give N alkoxy and N acyloxy purpurin 18 imides, respectively.

(13) The alkylation catalyst has superior activity and stability; it can be widely used in similar new-built units or revamping for capacity expansion of old units.

(14) Ethopabate is prepared via esterification, acylation and alkylation from p - aminosalicylic acid in 87.

(15) The mixture acid catalyzing enhances the alkylation reaction temperature, cutting down cold production energy consumption consequently.

(16) We compared the response types are good at: alkylation, oxidation, reduction, diazotization, such as halocarbons.

(17) Finally, the research and development of new alkylation catalysts and new catalytic alkylation processes are comprehensively reviewed.

(18) A brief introduction about the processing design of equipment for MEA are described. It used o-toluidine as raw material through ethylene alkylation to produce MEA.

(19) The probable reactions of the adamantane, for example halogenation, alcoholization, nitration and alkylation, are summarized.

(20) Said invention obtains the 3-butenyl phthalide by using butyl lithium p-0-phenylenediformic anhydride for direct alkylation and then eliminating reaction.

(21) Their structures were confirmed by IR, HNMR and elemental analyses and their phase transfer ability for the reaction of N alkylation, O alkylation and oxidation were also determined.

(22) Using thiophene as model compounds of FCC gasoline an d isobutene as alkylating agent, alkylation performance of mesoporous HMCM-41 w as explored by alkylation of thiophene with isobutene.

(23) The synthesis methods of hexamethyldisilane, such as reductive coupling reaction, Grignard reagent alkylation, electrochemical reduction et al, were recounted in details.

(24) Research and development results are reported for the synthesis of ethyl benzene by benzene alkylation with ethylene on AEB type zeolite catalyst in liquid phase.

(25) Influence of modification with acidic, amphiprotic and basic oxides on alkylation properties of HY molecular sieve was investigated.

(26) This paper had discussed some questions about disproportion, orientation and rearrangement in Friedel—Crafts alkylation from the opinion of the kinetic control and thermodynamical control.

(27) Refining processes with concentrated sulfuric acid or hydrogen fluoride as catalyst are currently being used for the manufacture of alkylation gasoline from isobutane and light olefins from FCCU.

(28) The 1,4 dialkoxynaphthalo 2,3 dinitriles were synthesized from 1,4 naphthoquinone by bromination, cyanation and O alkylation.

(29) This review deals with the recent progress in asymmetric synthesis using chiral polymeric reagents and catalysts for oxidation, reduction, alkylation and addition of prochiral compounds.

(30) The treatment of the waste acid was discussed from sulfuric acid alkylation plant, and it was utilized to produce active clay.

(31) The results showed that the dewatered ionic liquid could still catalyze the alkylation, and the carbonium mechanism was established through the GC-MS analysis of the reaction liquid product.

(32) In this study, the production and demand for gasoline product and alkylation gasoline component in domestic and abroad is analyzed, the development trend in the coming several years is forecasted.

(33) From the isobutane alkylation with butene at the presence of acidic catalyst, alkylate is the ideal blend composition of gasoline.

(34) The application of catalytic distillation reactor in benzene alkylation process is presented.

(35) From the isobutane alkylation with butene at the presence of acidic catalyst, alkylate is the ideal blend component of automobile gasoline.

(36) The processes and catalysts for synthesis of 2, 6 - dialkylnaphthalene via alkylation and acylation, respectively, were reviewed.

(36)

(37) The effect of various independent variables which affected the selectivity of nonene during the alkylation of benzene and propylene on phosphate catalyst was studied.

(38) This is carried out by chemical and petrochemical industries in processes such as isomerization, alkylation homologation, etc.

(39) Relations between benzene to propene ratio(R) and reactive results in alkylation were studied.

(40) Hexadecylbenzene was prepared by the alkylation of benzene with 1 - hexadecene over supported hydrofluoric acid on USY.

(41) METHODS Strontium ranelate was synthesized from citric acid via decarboxylation , esterification, cyclization, alkylation, hydrolysis and salification.

(42) Coke deactivation of alkylation catalyst exhibited independent deactivation mechanism basically in supercritical phase.

(43) The development of shape - selective alkylation of biphenyl to 4,4' - dialkylbiphenyl over zeolite catalysts is reviewed.

(44) Critical units to be upgraded include fluid catalytic cracker units , cokers, ultracrackers and alkylation units.

(45) Deactivation and regeneration of QZ-2000 catalyst for alkylation of benzene and propylene to synthesize cumene were studied.

(46) N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction, cyclization, N alkylation and sulfurization.

(47) The reaction yield can be increased by the improvement of alkylation methods.

(48) The process of alkyl naphthalene preparation by alkylation, acylation and direct extraction are also discussed.

(49) Effect of reaction temperature on coking deactivation of a modified HY zeolite catalyst for alkylation of benzene with propylene was investigated.

(50) Polystyrene - supported N - benzyl - N - alkyl - aminopyridine was prepared through chloromethylated polystyrene treated with 4 - aminopyridine and alkylation agents.

(51) HZSM-5 zeolite catalyst was treated with aqueous H_3BO_3 and the catalytic activity of the prepared catalysts was investigated by the alkylation of toluene with ethanol.

(52) Using liquified petroleum gas as feed stock, alkylation experiment was done with self-made ZXM-19 alkylation catalyst on fixed catalytic bed reaction apparatus.

(53) Ethopabate is prepared via esterification, acylation and alkylation from p - aminosalicylic acid in 87.4 % overall yield.

(54) This paper elucidates the present situation of research and development of solid acid catalysts for the alkylation of isobutane with butene.

(55) Optically active 3,4-diazaphospholane ligands and their application in asymmetric hydroformylation and allylic alkylation reactions.

(56) The Octane Number is retained owing to HZSM 5 ? ? s excellent ability of aromatization, isomerization and alkylation.

(57) Methods Etiracetam was synthesized from 2 - pyrrolidone by N - alkylation and aminolysis.

(58) Alkylation of ambident nucleophiles different places by using phase - transfer catalytic agent were studied in this paper.