Related Products of 4249-72-3 ,Some common heterocyclic compound, 4249-72-3, molecular formula is C14H14O2, 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.
The reaction feed is carried out in a glove box.Weigh lignin dimer 5 (0.1 mmol, 21.4 mg),Photocatalyst antimony trichloride (1 mol%), auxiliary tetrabutylammonium chloride (5 mol%),Di-tert-butyl azodicarboxylate (0.1 mmol) and 0.5 mL of acetonitrile were placed in a 10 ml reaction pressure tube. The reaction pressure tube is sealed in a blue light at 420 nm.After stirring for 12 hours, after the lignin dimer 5 is completely converted,Continue to add lignin dimer 5 (0.1 mmol, 21.4 mg) to the reaction.And di-tert-butyl azodicarboxylate (0.1 mmol), each time after the reaction,The conversion and product yield are shown in Figure 3. After the tenth feeding reaction is over,After separation by silica gel column chromatography (ethyl acetate: petroleum ether = 1:5, volume ratio), the product benzaldehyde (84.8 mg, yield 80%)And 1-(phenoxymethyl)-1,2-dicarboxylic acid di-tert-butyl ester-oxime (1)(267.0 mg, yield 79%).
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,4249-72-3, its application will become more common.
Reference:
Patent; Jilin University; Zhang Yuetao; He Jianghua; Wang Yinling; (11 pag.)CN110156581; (2019); A;,
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