Synthetic Route of 14320-38-8 , The common heterocyclic compound, 14320-38-8, name is Cyclopent-3-enol, molecular formula is C5H8O, 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.
Add ieri-butylchlorodiphenylsilane (36.66 g, 133.38 mmol) to 3-cyclopenten-l-ol (10.2 g, 121.26 mmol) and lH-imidazole (18.16 g, 266.77 mmol) in dry DMF (100 mL) drop wise at -20 C. After complete addition, allow the reaction temperature to gradually warm to ambient temperature and stir under nitrogen overnight. Add water, ammonium chloride, and EtOAc to the reaction mixture and stir the mixture for 1 hour. Separate the organic layer and wash with ammonium chloride (5x) until pH is acidic, water (2x), and brine, dry over sodium sulfate, filter, and concentrate under reduced pressure to give the title compound (40.22 g, 93%). ES/MS (m/z): 405.2 (M+2 MeCN+H).
The synthetic route of 14320-38-8 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; ELI LILLY AND COMPANY; BROOKS, Harold Burns; DALLY, Robert Dean; DURHAM, Timothy Barrett; FALES, Kevin Robert; FRIMPONG, Kwame; MCCOWAN, Jefferson Ray; NJOROGE, Frank George; SHEPHERD, Timothy Alan; SI, Chong; THRASHER, Kenneth Jeff; TOTH, James Lee; WU, Zhipei; (106 pag.)WO2016/89670; (2016); A1;,
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