ChemInform Abstract: Acid‐Catalyzed Alkoxylation and Hydration of Camphene.

Radbil, A. B.; Kulikov, M. V.; Соколова, Т. А.; Kartashov, V. R.; Zolin, B. A.; Radbil, B. A.

doi:10.1002/chin.200135199

Cited by 2 publications

(3 citation statements)

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“…Nonwood forest products extracted from timbers, such as tannin, turpentine, resin, and essential oils, are widely used in modern agriculture, medicine, industry, and energy. The commercial value of nonwood forest products is far above public recognition. , Various valuable chemicals are prepared by the acid-catalyzed hydration, − alkoxylation, − and acetoxylation of turpentine and its downstream products. In particular, dihydromyrcene (DHM, C 10 H 18 ) is a kind of cheap and renewable product produced from α-pinene and β-pinene derived from turpentine; thus, it is significant to study the reactions of DHM.…”

Section: Introductionmentioning

confidence: 99%

Study on the Alkoxylation of Dihydromyrcene over Cation Exchange Resins

Chen

Wang

Zheng

et al. 2019

Ind. Eng. Chem. Res.

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Reaction of dihydromyrcene (DHM) alkoxylated with 2-methyl-1,3-propanediol catalyzed by resin catalysts was systematically researched. The conditions were optimized after the investigation of resin type, ratio of reactants, and temperature in a stirred tank reactor. Thermodynamic data ranging from 343.15 to 363.15 K were revised by UNIFAC group contribution method, evaluating the parameters as follows: Δr H 0 = −49.5 kJ·mol–1, Δr S 0 = −157.6 J·mol–1·K–1, and Δr G 0 = −2.5 kJ·mol–1. Kinetic equations derivated from the pseudohomogeneous (PH) model were applied for fitting the experimental data with the internal and external diffusion eliminated in this alkoxylation system. The agreement of the results suggested that the PH model can be used to describe the alkoxylation of DHM.

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Section: Introductionmentioning

confidence: 99%

Study on the Alkoxylation of Dihydromyrcene over Cation Exchange Resins

Chen

Wang

Zheng

et al. 2019

Ind. Eng. Chem. Res.

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show abstract

“…Since the equilibrium of camphene hydration is shifted towards the reagents, only low yields of isoborneol have been obtained in this reaction [13,14]. On the other hand, the acetoxylation of camphene, which is less strictly equilibrium-controlled, can result in excellent yields of the commercially important pine-fragranced isobornyl acetate [10,[15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…Such conditions, however, are hardly suitable for solid HPA catalysts due to high solubility of HPAs in polar solvents. HPAs, including H 3 PW 12 O 40 (PW), have been used as homogeneous catalysts for the hydration [13,14,20] and acetoxylation [10] of camphene, albeit with a complicated catalyst recovery. In our previous work, silica-supported PW has been applied as a heterogeneous catalyst for the solvent-free acetoxylation of camphene, with easy catalyst recovery, but yielding less than 30% of isobornyl acetate [10].…”

Section: Introductionmentioning

confidence: 99%