163119-16-2Relevant articles and documents
Synthesis method of 2,6-di-tert-butyl-4-methylcyclohexanol compound
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Paragraph 0017-0028, (2020/07/15)
The invention discloses a synthetic method of a 2,6-di-tert-butyl-4-methylcyclohexanol compound, and belongs to the technical field of chemical products. The synthetic method specifically comprises the steps: adding ethyl acetate and 2,6-di-tert-butyl-4-methylphenol into an autoclave, and stirring for 15 min at normal temperature until the ethyl acetate and the 2,6-di-tert-butyl-4-methylphenol arecompletely dissolved; then adding palladium on carbon and potassium tert-butoxide, sealing the autoclave, replacing with nitrogen, and introducing hydrogen; carrying out hydrogenation reaction underthe conditions that the temperature is 80-100 DEG C and the hydrogen pressure is 0.2-0.4 MPa, and stopping hydrogenation when hydrogen is not absorbed in the autoclave; discharging and filtering palladium carbon; adding a diluted hydrochloric acid solution, adjusting to be neutral, and removing lower-layer water; distilling the supernatant liquid until all ethyl acetate is distilled out, so as toobtain colorless and transparent 2,6-di-tert-butyl-4-methylcyclohexanol liquid. According to the method, the 2,6-di-tert-butyl-4-methylcyclohexanol is directly obtained through hydrogenation at low temperature and pressure, and the method is suitable for industrial production.
Method of preparing 2,6-di-tert-butyl-4-methylcyclohexanol through catalytic hydrogenation
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Paragraph 0021-0028, (2019/05/15)
The invention discloses a method of preparing 2,6-di-tert-butyl-4-methylcyclohexanol through catalytic hydrogenation. Di-tert-butyl-4-methylphenol (BHT) and a supported catalyst are fed into a high pressure reaction kettle; after the reaction is finished,
Upgrading of aromatic compounds in bio-oil over ultrathin graphene encapsulated Ru nanoparticles
Shi, Juanjuan,Zhao, Mengsi,Wang, Yingyu,Fu, Jie,Lu, Xiuyang,Hou, Zhaoyin
supporting information, p. 5842 - 5848 (2016/05/24)
Fast pyrolysis of biomass for bio-oil production is a direct route to renewable liquid fuels, but raw bio-oil must be upgraded in order to remove easily polymerized compounds (such as phenols and furfurals). Herein, a synthesis strategy for graphene encapsulated Ru nanoparticles (NPs) on carbon sheets (denoted as Ru@G-CS) and their excellent performance for the upgrading of raw bio-oil were reported. Ru@G-CS composites were prepared via the direct pyrolysis of mixed glucose, melamine and RuCl3 at varied temperatures (500-800 °C). Characterization indicated that very fine Ru NPs (2.5 ± 1.0 nm) that were encapsulated within 1-2 layered N-doped graphene were fabricated on N-doped carbon sheets (CS) in Ru@G-CS-700 (pyrolysis at 700 °C). And the Ru@G-CS-700 composite was highly active and stable for hydrogenation of unstable components in bio-oil (31 samples including phenols, furfurals and aromatics) even in aqueous media under mild conditions. This work provides a new protocol to the utilization of biomass, especially for the upgrading of bio-oil.