6931-54-0Relevant articles and documents
Catalytic epoxidation of β-pinene with aqueous hydrogen peroxide
Fomenko,Bakhvalov,Kollegov,Salakhutdinov
, p. 1675 - 1679 (2017)
Epoxidation of β-pinene with 35–38% aqueous hydrogen peroxide in a new catalytic system containing manganese sulfate, salicylic acid, sodium bicarbonate and polar solvent (DMF, acetonitrile, methanol) is described. The method of quantitavive determination of β-pinene and its epoxide is developed.
A highly efficient method of epoxidation of olefins with hydrogen peroxide catalyzed by changeable hexadentate 8-quinolinolato manganese(III) complexes
Zhong, Sheng,Tan, Yueming,Fu, Zaihui,Xie, Qingji,Xie, Fang,Zhou, Xiaoping,Ye, Zhengpei,Peng, Guosheng,Yin, Dulin
, p. 154 - 158 (2008)
Novel hexadentate binding 8-quinolinolato manganese(III) complexes were proposed and conveniently synthesized for the epoxidation of olefins with aqueous hydrogen peroxide in water-acetone media with ammonium acetate and acetic acid as additives. The catalytic efficiencies of the suggested catalysts were found to be obviously superior to the traditional tetradentate salen-MnIIICl, due to their special hexadentate binding structures that could be easily converted to the corresponding pentadentate with pendant hydroxyl groups by opening an axial Mn{single bond}O bond in the reaction media, as supported by UV-vis spectra, in situ cyclic voltammetry, and quartz crystal microbalance characterizations.
Method for synthesizing epoxy pinane from pinene
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Paragraph 0036-0037, (2021/04/07)
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.
Fast-synthesis and catalytic property of heterogeneous Co-MOF catalysts for the epoxidation of α-pinene with air
Zhang, Haifu,He, Jie,Lu, Xinhuan,Yang, Lu,Wang, Chenlong,Yue, Fanfan,Zhou, Dan,Xia, Qinghua
, p. 17413 - 17421 (2020/11/02)
In the past decades, many methods have been developed for synthesizing MOFs, including solvothermal synthesis, mechanical synthesis, electrochemical synthesis, and microwave synthesis. Based on the existing research, a method is proposed for synthesizing Co-MOF by rapidly rotating hydrothermal crystallization, which largely shortens the crystallization time of Co-MOF. When the rotation speed was 150 rpm, only 2 h of crystallization time was needed to synthesize Co-MOF-150-2 with high crystallinity and stability. The optimal Co-MOF-150-2 manifested remarkable activity and selectivity for the epoxidation of α-pinene under mild conditions. The catalytic conversion of α-pinene reached the highest over the Co-MOF-150-2 catalyst, in which the conversion of α-pinene was 99.5% and the yield of 2,3-epoxypinane was 95.7%. The Co-MOF materials synthesized by the rotary method also had excellent stability and highly catalytic activity in recycling experiments. This journal is
