An efficient Knoevenagel condensation of aldehydes with active methylene compounds over novel, robust CeZrO4−δ catalyst

Autor:	Amber J. Sahani, Anand S. Burange, Radha V. Jayaram
Rok vydání:	2018
Předmět:	010405 organic chemistry General Chemistry 010402 general chemistry Combustion 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound chemistry Organic chemistry Knoevenagel condensation Cubic zirconia Methylene Malononitrile
Zdroj:	Research on Chemical Intermediates. 44:7805-7814
ISSN:	1568-5675 0922-6168
DOI:	10.1007/s11164-018-3587-6
Popis:	In the present work, we explored novel CeZrO4−δ as a catalyst for Knoevenagel condensation of aldehydes with reactive methylene compounds like malononitrile and ethylcyanoacetate. For the present study, ceria, zirconia and CeZrO4−δ were prepared by gel combustion method and well characterized using XRD, SEM, EDX, BET and TPD analyses, etc. A wide range of aldehydes were effectively condensed over novel CeZrO4−δ with reactive methylene compounds with high yields. In addition, the CeZrO4−δ was effectively reused for five consecutive cycles without significant loss in its activity. To the best of our knowledge, this is the first liquid-phase application of pure CeZrO4−δ.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4cfb5e92ec7f780633709cd7121b7812 https://doi.org/10.1007/s11164-018-3587-6 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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