217320-94-0

Upstream product

• 7785-70-8 (+)-α-pinene 
• 7785-26-4 (-)-α-pinene 
• 538-75-0 dicyclohexyl-carbodiimide 

Downstream Products

• 4501-58-0 campholenyc aldehyde 
• 1674-08-4 3-hydroxy-β-pinene 
• 1197-07-5 (+/-)-trans-carveol 
• 473-62-1 iso-pinocamphone 
• 18383-51-2 (-)-trans-carveol 
• 473-62-1 (1R,2R,5S)-2,6,6-trimethylbicyclo[3.1.1]heptan-3-one 
• 1674-08-4 (-)-trans-pinocarveol 
• 1253216-40-8 (5S)-2-methyl-5-(1-methylvinyl)-2-cyclohexen-1-ol 
• 186366-32-5 (1S,5S)-2,6,6-trimethylbicyclo[3.1.1]heptan-3-one 
• 869381-68-0 trans-pinocarveol 
• 23727-15-3 (+)-campholenic aldehyde 

Relevant academic research and scientific papers

Covalent supporting of novel dioxo-molybdenum tetradentate pyrrole-imine complex on Fe3O4 as high-efficiency nanocatalyst for selective epoxidation of olefins

A novel Mo(VI) tetradentate Schiff base complex based on two pyrrole-imine donors was anchored covalently on Fe3O4 nanoparticles and characterized using physicochemical techniques. The catalytic epoxidation process was optimized in t

Epoxidation of α-pinene catalyzed by methyltrioxorhenium(VII): Influence of additives, oxidants and solvents

The epoxidation of α-pinene employing methyltrioxorhenium as catalyst is examined. The influence of mono- and bidentate Lewis basic additives (e.g. tbutylpyridine, 4,4′-dimethyl-2,2′-bipyridine, and Schiff-bases) is investigated. Additionally the impact of the oxidant (H 2O2 in water or urea-hydrogen peroxide (UHP)) on the catalytic performance is studied. The effect of the solvent is also examined in order to determine the optimal conditions for the epoxidation of α-pinene. The best and straightforwardly applicable result is obtained when a ratio α-pinene:MTO:tbutylpyridine:UHP of 200:1:40:600 is applied at 0 °C in nitromethane. In this case, α-pinene oxide is formed with 95% yield after 3 h with a turnover frequency (TOF) of 610 h-1.

Excellent alkene epoxidation catalytic activity of macrocyclic-based complex of dioxo-Mo(VI) on supermagnetic separable nanocatalyst

A phenoxybutane-based Schiff base complex of cis-dioxo-Mo(VI) was supported on paramagnetic nanoparticles and characterized using powder X-ray diffraction, infrared, diffuse reflectance and atomic absorption spectroscopies, scanning and transmission elect

Method for synthesizing epoxy pinane from pinene

The invention relates to a method for synthesizing epoxy pinane from pinene. The method comprises the following steps: 1) fully mixing pinene, a solvent and an auxiliary agent; 2) dropwise adding hydrogen peroxide and acetic anhydride into the mixed solution obtained in the step 1) at a certain temperature for reaction; and 3) after the reaction is finished, washing the material, recovering the solvent under reduced pressure, and rectifying under reduced pressure to obtain the product epoxy pinane. The method provided by the invention has the advantages of high conversion rate, good selectivity, mild reaction conditions, simple operation and the like, and the method has high economic applicability and is suitable for industrial production.

Modification of MnFe2O4 surface by Mo (VI) pyridylimine complex as an efficient nanocatalyst for (ep)oxidation of alkenes and sulfides

In this current paper, we report a new type of heterogeneous molybdenum (+6) complex, prepared by covalent grafting of cis-dioxo?molybdenum (VI) pyridylimine complex on the surface of MnFe2O4 nanoparticles (NP) and characterized using various physicochemical techniques. The recyclable prepared nanocatalyst was tested for sulfoxidation of sulfides and epoxidation of alkenes under solvent-free condition. The catalyst exhibited high turnover frequency for the oxidization of cyclooctene and cyclohexene (10,850 h?1) and thioanisole and dimethyl sulfide (41,250 h?1). The synthesized catalyst was found highly efficient, retrievable and eco-friendly catalyst for the (ep)oxidation of alkenes and sulfides in excellent yields in a short time. Furthermore, the synthesized nanocatalyst can be reused for four runs without apparent loss of its catalytic activity in the oxidation reaction.

Cis-dioxidomolybdenum(VI) complexes with chiral tetradentate Schiff bases: Synthesis, spectroscopic characterization and catalytic activity in sulfoxidation and epoxidation

New chiral mononuclear cis-dioxidomolybdenum(VI) complexes, MoO2L1-MoO2L7, have been synthesized by the reaction of MoO2(acac)2 with tetradentate Schiff bases derived from various substitut

Cis-dioxo-Mo(VI) salophen complex supported on Fe3O4@SiO2 nanoparticles as an efficient magnetically separable and reusable nanocatalyst for selective epoxidation of olefins

In this work, paramagnetic Fe3O4/SiO2 nanoparticles were synthesized, characterized and functionalized with dioxo-Mo(VI) tetradentate Schiff base complex and characterized using IR spectroscopy, X-ray powder diffraction spectroscopy, scanning electron microscopy, transmission electron microscopy, vibrating sample magnetometry, diffuse reflectance spectroscopy and atomic absorption spectroscopy. Catalyst was used for the selective epoxidation of cyclooctene, cyclohexene, styrene, indene, α-pinene, 1-hepten, 1-octene, 1-dodecen and trans-stilbene using tert-butyl hydroperoxide as oxidant in 1,2-dichloroethane. This catalyst is efficient for oxidation of cyclooctene with a 100% selectivity for epoxidation with 100% conversion in 1?h. After the reaction, the magnetic nanocatalyst was easily separated by simply applying an external magnetic field and was used at least five successive times without significant decrease in conversion.[Figure not available: see fulltext.].

Development of a lipase-mediated epoxidation process for monoterpenes in choline chloride-based deep eutectic solvents

Chemical syntheses in contemporary process industries today are predominantly conducted using organic solvents, which are potentially hazardous to humans and the environment alike. Green chemistry was developed as a means to overcome this hazard and it also holds enormous potential for designing clean, safe and sustainable processes. The present work incorporates the concepts of green chemistry in its design of a lipase-mediated epoxidation process for monoterpenes; the process uses alternative reaction media, namely deep eutectic solvents (DESs), which have not been reported for such an application before. Choline chloride (ChCl), in combination with a variety of hydrogen bond donors (HBD) at certain molar ratios, was screened and tested for this purpose. The process was optimized through the design of experiments (DoE) using the Taguchi method for four controllable parameters (temperature, enzyme amount, peroxide amount and type of substrate) and one uncontrollable parameter (DES reaction media) in a crossed-array design. Two distinct DESs, namely glycerol:choline chloride (GlCh) and sorbitol:choline chloride (SoCh), were found to be the best systems and they resulted in a complete conversion of the substrates within 8 h. Impurities (esters) were found to form in both the DESs, which was a concern; as such, we developed a novel minimal DES system that incorporated a co-substrate into the DES so that this issue could be overcome. The minimal DES consisted of urea·H2O2 (U·H2O2) and ChCl and exhibited better results than both the GlCh and SoCh systems; complete conversions were achieved within 2 h for 3-carene and within 3 h for both limonene and α-pinene. Product isolation with a simple water/ethyl acetate based procedure gave isolated yields of 87.2 ± 2.4%, 77.0 ± 5.0% and 84.6 ± 3.7% for 3-carene, limonene and α-pinene respectively.

Kinetic study of α-pinene allylic oxidation over FePcCl16-NH2-SiO2 catalyst

The kinetic of α-pinene oxidation over an iron hexadecachlorinated phthalocyanine immobilized on modified silica (FePcCl16-NH2-SiO2) with t-butyl hydroperoxide (TBHP) as oxidant is proposed. Reaction rates were calculated by the initial reaction rate method from the data obtained in a batch reactor, and compared with kinetic expressions proposed from mechanisms based on Langmuir Hinshelwood Hougen Watson (LHHW) and power-rate law models. The kinetic parameters were estimated from the experimental data by optimization using the Genetic Algorithm. A kinetic expression based on LHHW model with the adsorption of α-pinene, TBHP and the main reaction products (verbenone, α-pinene epoxide and verbenol) on the surface of the catalyst predicted the experimental data with good accuracy (R2?=?0.986). The apparent activation energy of α-pinene allylic oxidation over FePcCl16-NH2-SiO2/TBHP was 40.08?kJ/mol. α-Pinene conversion of 83.7% was obtained after 23?h with a selectivity to verbenone of 23%. Under the reaction conditions leaching of the active species was not observed; however, the effect of radicals in the bulk liquid phase was demonstrated, confirming that the reaction involves a combination of both heterogeneous and homogeneous pathways. The catalyst can be used at least in seven cycles without loss of α-pinene conversion nor verbenone selectivity.

Oxidation of organic compounds by hydrogen peroxide using polymer-anchored azo-metal catalysts

Polymer-anchored azo complexes of Cu(II) and Ni(II) were synthesized by the reaction of chloromethylated polystyrene, 3-aminophenol, and 1-nitroso-2-naphthol with the metal chlorides. The catalytic activities of these complexes were studied in the oxidation of various organic substrates including alkenes, alcohols, alkanes, and sulfides with 30 % aqueous hydrogen peroxide. The structures of both catalysts have been investigated by physiochemical methods. Both catalysts proved to be very stable and could be reused more than five times without significant loss of activity. Furthermore, these catalysts require very mild reaction conditions.