Sulfuric acid and Amberlyst-H+ catalyzed condensation reactions of renewable keto acids with paraformaldehyde: Synthesis of a new dispiro bis-lactone ring system 2,9,13-trioxadispiro[4.1.4.3]tetradecane-3,6,10-trione

Amarasekara Ananda S.; Ha Uyen; Fonari Marina; Bejagam Shabari Nath; Margetic Davor

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AMARASEKARA, Ananda S., HA, Uyen, FONARI, Marina, BEJAGAM, Shabari Nath, MARGETIC, Davor. Sulfuric acid and Amberlyst-H+ catalyzed condensation reactions of renewable keto acids with paraformaldehyde: Synthesis of a new dispiro bis-lactone ring system 2,9,13-trioxadispiro[4.1.4.3]tetradecane-3,6,10-trione. In: RSC Advances, 2017, nr. 7(39), pp. 23917-23923. ISSN 2046-2069. DOI: https://doi.org/10.1039/c7ra02303k

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RSC Advances

Numărul 7(39) / 2017 / ISSN 2046-2069

Sulfuric acid and Amberlyst-H⁺ catalyzed condensation reactions of renewable keto acids with paraformaldehyde: Synthesis of a new dispiro bis-lactone ring system 2,9,13-trioxadispiro[4.1.4.3]tetradecane-3,6,10-trione

DOI:https://doi.org/10.1039/c7ra02303k

Pag. 23917-23923

Amarasekara Ananda S.¹, Ha Uyen¹, Fonari Marina²³, Bejagam Shabari Nath⁴, Margetic Davor⁵

¹ Prairie View AandM University, Prairie View,
² New Mexico Highlands University, Department of Chemistry, Las Vegas,
³ Institute of Applied Physics, Academy of Sciences of Moldova,
⁴ New Mexico Highlands University, Las Vegas,
⁵ Ruder Boskovic Institut

Disponibil în IBN: 20 februarie 2022

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Rezumat

The sulfuric acid and Amberlyst-H⁺ catalyzed condensation reactions of renewable feedstock levulinic acid with paraformaldehyde under neat conditions at 80 °C gives 2,9,11,14-tetraoxadispiro[4.1.5.3]pentadecane-3,6-dione in 91-93% yield, in which the structure was confirmed by single crystal X-ray crystallography.

Cuvinte-cheie
Acetal resins, catalysis, Condensation, crystal structure, crystallography, Esters, Isomers, sulfuric acid, X ray crystallography