2010
DOI: 10.1002/jccs.201000095
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Preparation of Heteropoly Acid/Porous Hybrid Materials and Investigation of their Catalytic Behavior in the Synthesis of Perimidine

Abstract: A series of hybrid heteropoly acids (HPA) were prepared. The HPA/NaY and HPA/NaY/MCM-41 hybrids of the synthesized catalysts were characterized using XRD, BET, TGA, SEM and FT-IR techniques. The results show that reasonable amount of HPA in HPA/NaY and HPA/NaY/MCM-41 hybrids remains even after washing with water, which indicates that heteropoly anions were strongly bonded to the porous materials. The catalytic properties of the hybrid catalysts were examined for the preparation of 2-(4-nitrophenyl)-2,3-dihydro… Show more

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Cited by 15 publications
(7 citation statements)
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References 51 publications
(37 reference statements)
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“…In 2010, Zendehdel et al [70] synthesized perimidines using a series of hybrid heteropolyacids (HPA) by refluxing 1,8-naphthalenediamine (NDA) and aromatic aldehydes in ethanol for 5 h at 80 °C. The order of the catalytic efficiency is as follows: HPA/NaY > HPA/NaY/MCM-41 > NaY > HPA > MCM-41.…”
Section: Acid-catalyzed Synthesismentioning
confidence: 99%
“…In 2010, Zendehdel et al [70] synthesized perimidines using a series of hybrid heteropolyacids (HPA) by refluxing 1,8-naphthalenediamine (NDA) and aromatic aldehydes in ethanol for 5 h at 80 °C. The order of the catalytic efficiency is as follows: HPA/NaY > HPA/NaY/MCM-41 > NaY > HPA > MCM-41.…”
Section: Acid-catalyzed Synthesismentioning
confidence: 99%
“…Zendehdel et al reported the synthesis of PW 12 /NaY and PW 12 /NaY/MCM-41 composites by synthesis of the zeolite in the presence of the polyoxometalate [33]. HPW 12 (10 g) was mixed with 16.13 g of sodium silicate and 6 mL of the initiator (with the composition 16 Na 2 O:Al 2 O 3 :15 SiO 2 :320 H 2 O aged at 32˝C for 32 h).…”
Section: Synthesis Of the Zeolite Around The Polyoxometalatementioning
confidence: 99%
“…Reaction of 1,8‐diaminonaphthalene with aldehydes and ketones results in the formation of 2,3‐dihydro‐1 H ‐perimidines which can be converted to perimidines by dehydrogenation . The existing reports for its synthesis involve the use of various catalysts like NaY‐Zeolite, Cu(NO 3 ) 2 .6H 2 O, Zn(OAc) 2 .2H 2 O,8b HPA/NaY, I 2 , FePO 4 , nano‐CuY zeolite, Fe 3 O 4 @β‐CD‐ZrO etc. in organic solvents yielding products in moderate to good yields …”
Section: Introductionmentioning
confidence: 99%