[PDF] Top 20 Reactivity of mesoporous ZSM-5 zeolite towards Friedel-Crafts acylation of anisole and propionic anhydride

... (TEOS, 5 mL, Aldrich) was then dropped into the solution under vigorous stirring and left stirred for 6 ...as mesoporous aluminosilicate. As comparison microporous ZSM-5 was synthesized ... See full document

... new zeolite-based catalysts have been developed for chemical processes namely the Friedel Crafts acylation and alkylation, and consecutive oxidative acidic reactions of olefin to diol in which ... See full document

... for Friedel-Crafts reaction. In researches of eco-friendly Friedel-Crafts acyla- tions of anisole, usage of zeolite has been widely developed as promising cata- lysts as well as ... See full document

... by Friedel-Crafts acylation of anisole with propionic anhydride using mordenite zeolite as a solid acid ...at anisole to propionic anhydride molar ... See full document

... of acylation of anisole by propionic anhy- dride proposed in this ...of propionic anhydride attacks the proton of Brønsted site in zeolite to form acylium ion and ... See full document

... Chemicals used in this study were liquid glycerol, ZSM-5 zeolite catalyst, phosphoric acid, oxalic acid, tartaric acid and water. All the reagents were of analytical grade and purchased from ... See full document

... perceived that this outcome might be due to the strain present in diketene and that, therefore, it would be of interest to study the reactivity of ferrocene toward the essentially unstrained !- methylene lactones, ... See full document

... novel zeolite-based solid acid catalysts with tailored strengths of acidity and improved resistance to carbon/coke deposition, such as acidified ZSM-5 catalysts, were developed to achieve a high ... See full document

... spent catalyst, corrosion, difficulty in separation and recovery of desired product, high toxicity, etc. All these catalysts need dry atmosphere and reagents as they are moisture sensitive. In addition to this, ... See full document

... H-ZSM-5 zeolite was an active catalyst for this reaction [9-12], however, this catalyst without any treatment demonstrated low ...[4, 5, and ... See full document

... Mann, Joshua, Doluda, Valentin Yu, Leonard, Clara, Losovyj, Yaroslav B., Morgan, David Gene, Bukalov, Sergey S., Shifrina, Zinaida, Stein, Barry D., Cherkasov, Nikolay, Rebrov, Evgeny V., Harms, Zachary D., Pink, Maren, ... See full document

... pre-activated ZSM-5 zeolite pellets of high porosity property were utilised to absorb carbon- dioxide from exhaust gas through after treatment ...of ZSM-5 zeolite ... See full document

... in ZSM-5 zeolite. No changes in the pore volume of CoS/NiS ZSM-5 zeolite demonstrate that the guests may be are located on the surface area of ZSM-5 ...unloaded ... See full document

... of mesoporous ZSM-5 has been studied on the esterification of acetic acid (AA) with benzyl alcohol ...The mesoporous ZSM-5 catalyst has been synthesized with the variation of ... See full document

... The study of variation of temperature is of immense importance since this data is used in calculation of activation energy for the reaction. The rate constants are basically the strong intrinsic functions of temperature. ... See full document

... of zeolite films on various supports has burgeoned over the past years ...of ZSM-5 zeolite membranes in nano scale with different characteristics for the selective separation of H 2 from ... See full document

... XR diffractogram of the zeolite are presented in Figure 2. The analysis of the diffractogram demonstrates the presence of peaks (2è) located between 7 and 50 degree. The peaks centered at 2è =7.98, 8.94, 23.06 and ... See full document

... The results of the reactions with 4-chlorodiphenylmethanol are summarized in Table 3. The yields with 4-chlorodiphenylmethanol decreased compared to those with diphenylmethanol, likely because of the inefficient ... See full document

... visible-light photoredox Friedel-Crafts reaction of indoles with benzoxazin-2-ones using as catalyst a.. 62.[r] ... See full document

... still the only ketone isolated after work-up (Table 2) and in 1,2-dichloroethane the yield had now increased to almost 100% (run no 8). This is a considerable improve- ment over the yield reported earlier (50%) resulting ... See full document