LiOO.H2O as a catalyst for Knoevenagel and Gewald reactions

• Autorzy: Gouda M. A.
• Języki publikacji: EN

Abstrakty

EN

Commercial available lithium hydroxide monohydrate LiOH.H 2O was found to be a novel 'dual activation' catalyst for tandem cross Knoevenagel condensation between malononitrile or ethylcyanoacetate and aromatic aldehydes leading to an efficient and easy synthesis of the corresponding arylidenes at room temperature in a short reaction time. In the case of salicyaldehyde the reaction lead to the formation of 3-substituted coumarins. The high efficacy, cheapness and easy availability of LiOH.H2O prompted us to investigate its validity as a basic catalyst for Gewald reaction.

Słowa kluczowe

EN

Malononitrile; Ethylcyanoacetate; cyclohexanone; LiOO.H2O; Knoevenagel reaction; Gewald reaction

PL

Malononitryl; cykloheksan; Cyclohexanone; LiOO.H2O; reakcja Knoevenagel; reakcja Gewalda

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2010
• Tom: Vol. 12, nr 4
• Strony: 31--35
• Opis fizyczny: Bibliogr. 18 poz., rys., tab.

Twórcy

autor

Gouda M. A.

• Chemistry Department, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt,

Bibliografia

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