Neryl acetate synthesis from nerol esterification with acetic anhydride by heterogeneous catalysis using ion exchange resin was written by Zeferino, Rubieli Carla Frezza;Piaia, Vinicius Aleixo Angonese;Orso, Vinicius Tres;Pinheiro, Vitor Machado;Zanetti, Micheli;Colpani, Gustavo Lopes;Padoin, Natan;Soares, Cintia;Fiori, Marcio Antonio;Riella, Humberto Gracher. And the article was included in Journal of Industrial and Engineering Chemistry (Amsterdam, Netherlands) in 2022.COA of Formula: C12H20O2 This article mentions the following:
This work aims to synthesize neryl acetate from the nerol esterification reaction with acetic anhydride through heterogeneous catalysis using the ion exchange resin Lewatit GF 101. The reaction was monitored by gas chromatog. and the neryl acetate chem. structure was confirmed by mass spectrometry and NMR spectroscopy. The variables effect on the neryl acetate synthesis was evaluated from an exptl. design anal. The reaction showed the highest combined values for nerol conversion (98.11%) and neryl acetate selectivity (86.10%) at 30 min within optimal exptl. conditions of temperature at 40°C, catalyst content at 7% wt, molar ratio at 1:4 (nerol: acetic anhydride), agitation speed at 250 rpm and nerol content at 3 mmol. The complete nerol conversion was achieved at 40 min with 82.34% selectivity. The reaction rate was controlled only by the nerol decay, an expected behavior due to the excess of acetic anhydride used. In addition, the value obtained for the main reaction kinetic constant found by a pseudo-homogeneous model was 6 times greater than that of the parallel reaction. The catalyst reuse was investigated and after 3 cycles a high conversion (96.68%) and selectivity (83.78%) were observed indicating a low loss of the catalytic activity. In the experiment, the researchers used many compounds, for example, (E)-3,7-Dimethylocta-2,6-dien-1-yl acetate (cas: 105-87-3COA of Formula: C12H20O2).
(E)-3,7-Dimethylocta-2,6-dien-1-yl acetate (cas: 105-87-3) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. COA of Formula: C12H20O2
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics