Retracted: Effective and Green One‐Pot Multicomponent Synthesis of Novel Derivatives of 4 H ‐Pyrans in the Presence of Hexamethylenetetramine as Catalyst in Water Medium
| Autor: | Azizollah Habibi, Hadi Dolati, Maysam Habibi, Seyedeh Mahbobeh Mahdavi, Saber Hakimi Nasab |
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| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
010405 organic chemistry Organic Chemistry 010402 general chemistry 01 natural sciences Aldehyde Environmentally friendly 0104 chemical sciences Catalysis chemistry.chemical_compound 13c nmr spectroscopy chemistry Elemental analysis Proton NMR Organic chemistry Hexamethylenetetramine Malononitrile |
| Zdroj: | Journal of Heterocyclic Chemistry. 54:1880-1886 |
| ISSN: | 1943-5193 0022-152X |
| Popis: | Hexamethylenetetramine catalyzes synthesis of new polyfunctionalized 4H-pyrans by the reaction of aromatic aldehyde, malononitrile, and β-keto esters via one-pot three-component procedure in water medium. Addition of reactants was performed by two methods led to achieve similar results. Using hexamethylenetetramine in catalytic amount not only represents the economic face of the reaction but also due to the use of water, a green and safe reaction condition is organized. Thus, the current strategy provides the benefits of high productivity, convenient operation, and environmental friendliness. The structure of all products were proved by elemental analysis, IR, 1H NMR, and 13C NMR spectroscopy. |
| Databáze: | OpenAIRE |
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