Reference of 454-31-9,Some common heterocyclic compound, 454-31-9, name is Ethyl 2,2-difluoroacetate, molecular formula is C4H6F2O2, 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: In a glove box, add a ruthenium complex Il (0.75 mg, 0.001 mmol),Potassium methoxide (3.5 to 70 mg, 0.05 to 1 mmol), tetrahydrofuran (1 to 10 mL), and ester compounds (0.5 to 10 mmol).After sealing the autoclave, remove it from the glove box and fill it with hydrogen to the required pressure.The reaction vessel was stirred at room temperature for 16 to 24 hours.After slowly releasing excess hydrogen, the reaction solution was depressurized to remove the solvent, and the residue was purified by a short column of silica gel to obtain an alcohol compound.The results are shown in Table 7.
The synthetic route of 454-31-9 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Zhejiang Zhongke Chuangyue Pharmaceutical Co., Ltd.; Ding Kuiling; Tang Yitian; Han Zhaobin; (55 pag.)CN110357923; (2019); A;,
Ester – Wikipedia,
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