Category: 57595-23-0

57595-23-0, Methyl 4-oxotetrahydrofuran-3-carboxylate is a Tetrahydrofurans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Example 1 5,7-dihydrofuro[3,4-d]pyrimidine-2,4(1H,3H)-dione: To Methyl 4-oxotetrahydrofuran-3-carboxylate (18.30 g), urea (11.44 g), methanol (100 mL) and concentrated hydrochloric acid (5 mL) were added. The mixture was refluxed with heating for two hours. The obtained suspension was stirred for 15 minutes in an ice-bath. The precipitate was filtered under reduced pressure, and washed with water (20 mL x 2 times). 2 mol/L aqueous solution of sodium hydroxide (100 mL) and water (30 mL) were added to the obtained precipitate. The mixture was refluxed with heating for 1 hour. Concentrated hydrochloric acid was dropped to the reaction solution in an ice-bath. The precipitate was filtered under reduced pressure, and then the precipitate was washed with water and acetone, dried under reduced pressure to give the title compound (15.7 g) having the following physical data. TLC: Rf 0.32 (methanol: ethyl acetate = 10 : 1); 1H-NMR (300MHz, DMSO-d6). delta 11.23, 11.44-11.10, 11.00, 4.70.

As the paragraph descriping shows that 57595-23-0 is playing an increasingly important role.

Reference£º
Patent; ONO PHARMACEUTICAL CO., LTD.; EP1666468; (2006); A1;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem

57595-23-0, Methyl 4-oxotetrahydrofuran-3-carboxylate is a Tetrahydrofurans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: To a stirred solution of 35b (3.0 g, 13.8 mmol) in AcOH (20 mL) was added ethyl 2-oxocyclopentanecarboxylate (2.37 g, 15.2 mmol) at room temperature and the reaction mixture was allowed to be heated at reflux and stirred for 3 h. The reaction mixture was cooled to room temperature and diluted with Et2O/hexane (1:3). The precipitates were collected by filtration to give 3-(2-methyl-4-methoxyphenyl)-2-methyl-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidin-8-ol (3.88 g, 91% yield) as an off-white powder, which was used for the next reaction without further purification.

The synthetic route of 57595-23-0 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Saito, Tetsuji; Obitsu, Tetsuo; Kondo, Takashi; Matsui, Toshiaki; Nagao, Yuuki; Kusumi, Kensuke; Matsumura, Naoya; Ueno, Sonoko; Kishi, Akihiro; Katsumata, Seishi; Kagamiishi, Yoshifumi; Nakai, Hisao; Toda, Masaaki; Bioorganic and Medicinal Chemistry; vol. 19; 18; (2011); p. 5432 – 5445;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem