Electric Literature of 92409-15-9 ,Some common heterocyclic compound, 92409-15-9, molecular formula is C17H20O5, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route.
General procedure: The catalytic hydrogenolysis of lignin model compounds was performedusing a 50 mL Zr-alloy autoclave provided by Anhui KemiMachinery Technology Co., Ltd. For a typical procedure, lignin modelcompounds (0.5 mmol or 1 mmol) or organosolv lignin (35 mg), heterogeneousFe catalyst (100 mg), and solvent (20 mL) were added intothe autoclave with a quartz lining. After purging the reactor with H2,the reaction was conducted with 1 MPa H2 (at room temperature) at240 C for 12 h with a stirring speed of 800 rpm. After reaction, internalstandards are added to the product solution, and then the liquid productswere analyzed by using both GC and GC-MS. For the conversionof alpha-O-4 lignin model compound, 2-phenylethanol is used as internalstandard to determine the yields of benzyl alcohol and phenol, anddodecane is used to determine the yield of toluene. For the conversionof beta-O-4 lignin model compounds, benzyl alcohol and dodecane areused as internal standards to determine the yields of phenolic fragmentsand aromatic fragments, respectively. A representative GC spectrumcan be seen in Fig. S11 in supporting information. GC-MS analyses wereperformed on an Agilent 7890 Gas Chromatograph equipped with a DBWAXETR30m×0.25 mm×0.25mm capillary column (Agilent) or aHP-5MS 30m×0.25 mm×0.25mm capillary column (Agilent).Although HP-5MS column is unsuitable for the determination of productsyields due to the low polarity, it can be used to confirm whethersome complex lignin model compounds were completely converted.The GC was directly interfaced to an Agilent 5977 mass selective detector(EI, 70 eV). The following GC oven temperature programs wereused: 40 C hold for 1 min, ramp 5 C min-1 to a temperature of 120 C,and then ramp 10 C min-1 to 300 C and hold for 5 min. To get the representative GC spectrum of gaseous products, the gaseous phase wascollected and injected into a Fuli 9790II Gas Chromatograph equippedwith a TDX-01 packed column and a thermal conductivity detector(TCD) through a six-way valve to analyze the composition.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,92409-15-9, its application will become more common.
Reference:
Article; Li, Jiang; Sun, Hui; Liu, Jia-xing; Zhang, Jun-jie; Li, Zhen-xing; Fu, Yao; Molecular catalysis; vol. 452; (2018); p. 36 – 45;,
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