Synergism of Metal and Organocatalysis in Condensation
Reactions of Aromatic Aldehydes with Anilines Affording Imines:
Effect of Catalysts on the Base of a Supported Cerium(III) and
Proline

J 2014

Synergism of Metal and Organocatalysis in Condensation Reactions of Aromatic Aldehydes with Anilines Affording Imines: Effect of Catalysts on the Base of a Supported Cerium(III) and Proline

HAVRÁNKOVÁ, Eva; Patrik POSPÍŠIL a Pavel PAZDERA

Základní údaje

Originální název

Synergism of Metal and Organocatalysis in Condensation Reactions of Aromatic Aldehydes with Anilines Affording Imines: Effect of Catalysts on the Base of a Supported Cerium(III) and Proline

Autoři

HAVRÁNKOVÁ, Eva ; Patrik POSPÍŠIL a Pavel PAZDERA

Vydání

Science Journal of Chemistry, 2014, 2330-0981

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10401 Organic chemistry

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/14:00076567

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Imines; Metal Catalysis; Organocatalysis; Synergism; Polymer Supported Ce(III)

Štítky

AKR, rivok

Změněno: 27. 4. 2015 20:55, Ing. Andrea Mikešková

Anotace

V originále

Condensation reactions between 4-X-benzaldehydes (X = NO2, H, OCH3) and 4-Y-anilines (X = NO2, H, OCH3) catalyzed by new catalyst, i.e. Ce(III) supported on weakly acidic cation-exchanger resin of polyacrylate type and/or by proline as organocatalyst giving 4-Y-N-[(E)-(4-X-phenyl)methylidene]anilines, were studied. It was found that the both of the used catalysts, i.e. metal and organocatalyst, shortened reaction time, thus contributing to higher yields of products. The synergism between catalytic action of polymer supported Ce(III) and proline was found. It was observed that simultaneous application of metal and organocatalyst led to shorter reaction times. On the other hand, it was found that the synergic efficiency of the both applied catalysts depends on electron influence of the substituents X, Y present in 4-X-benzaldehyde and 4-Y-aniline, as well. Imines were prepared under catalysis by Ce(III), proline or by simultaneous use of both catalysts in the yields 97-99% and identified. For comparison, the above mentioned condensation reactions were carried out under classical catalysis by mineral acid with different, usually poor, results.

Citovat

HAVRÁNKOVÁ, Eva; Patrik POSPÍŠIL a Pavel PAZDERA. Synergism of Metal and Organocatalysis in Condensation Reactions of Aromatic Aldehydes with Anilines Affording Imines: Effect of Catalysts on the Base of a Supported Cerium(III) and Proline. Science Journal of Chemistry. 2014, roč. 2, č. 1, s. 1-8. ISSN 2330-0981.

@article{1199027,
   author = {Havránková, Eva and Pospíšil, Patrik and Pazdera, Pavel},
   article_number = {1},
   keywords = {Imines; Metal Catalysis; Organocatalysis; Synergism; Polymer Supported Ce(III)},
   language = {eng},
   issn = {2330-0981},
   journal = {Science Journal of Chemistry},
   title = {Synergism of Metal and Organocatalysis in Condensation Reactions of Aromatic Aldehydes with Anilines Affording Imines: Effect of Catalysts on the Base of a Supported Cerium(III) and Proline},
   url = {http://www.sciencepublishinggroup.com/specialissue/125002},
   volume = {2},
   year = {2014}
}

TY  - JOUR
ID  - 1199027
AU  - Havránková, Eva - Pospíšil, Patrik - Pazdera, Pavel
PY  - 2014
TI  - Synergism of Metal and Organocatalysis in Condensation Reactions of Aromatic Aldehydes with Anilines Affording Imines: Effect of Catalysts on the Base of a Supported Cerium(III) and Proline
JF  - Science Journal of Chemistry
VL  - 2
IS  - 1
SP  - 1-8
EP  - 1-8
SN  - 23300981
KW  - Imines
KW  - Metal Catalysis
KW  - Organocatalysis
KW  - Synergism
KW  - Polymer Supported Ce(III)
UR  - http://www.sciencepublishinggroup.com/specialissue/125002
L2  - http://www.sciencepublishinggroup.com/specialissue/125002
N2  - Condensation reactions between 4-X-benzaldehydes (X = NO2, H, OCH3) and 4-Y-anilines (X = NO2, H, OCH3) catalyzed by new catalyst, i.e. Ce(III) supported on weakly acidic cation-exchanger resin of polyacrylate type and/or by proline as organocatalyst giving 4-Y-N-[(E)-(4-X-phenyl)methylidene]anilines, were studied. It was found that the both of the used catalysts, i.e. metal and organocatalyst, shortened reaction time, thus contributing to higher yields of products. The synergism between catalytic action of polymer supported Ce(III) and proline was found. It was observed that simultaneous application of metal and organocatalyst led to shorter reaction times. On the other hand, it was found that the synergic efficiency of the both applied catalysts depends on electron influence of the substituents X, Y present in 4-X-benzaldehyde and 4-Y-aniline, as well. Imines were prepared under catalysis by Ce(III), proline or by simultaneous use of both catalysts in the yields 97-99% and identified. For comparison, the above mentioned condensation reactions were carried out under classical catalysis by mineral acid with different, usually poor, results.
ER  -

HAVRÁNKOVÁ, Eva; Patrik POSPÍŠIL a Pavel PAZDERA. Synergism of Metal and Organocatalysis in Condensation Reactions of Aromatic Aldehydes with Anilines Affording Imines: Effect of Catalysts on the Base of a Supported Cerium(III) and Proline. \textit{Science Journal of Chemistry}. 2014, roč.~2, č.~1, s.~1-8. ISSN~2330-0981.

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