Application of 34916-10-4,Some common heterocyclic compound, 34916-10-4, name is 4-Oxo-cyclohexanecarbonitrile, molecular formula is C7H9NO, 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.
Step 3: LiHMDS (9.5 mL, 9.5 mmol) was added dropwise into a solution of compound 116-3 (1 g, 8 mmol) in THF (20 mL) at 0 C. After the addition, the reaction mixture was stirred for further 30min. Then PhN(SO2CF3) (3.6 g, 8.6 mmol) was added into the solution. The obtained mixture was stirred at 25C for 6h, finally quenched with H2O and extracted with EtOAc. The combined extraction liquid was washed with brines, dried over sodium sulfate and concentrated to dry to deliver sulfonate as yellow oil. The obtained sulfonate, Pd(dppf)Cl2 (80.4 mg, 0.11 mmol), bis(pinacolato)diboron (0.67 g, 2.6 mmol) and KOAc (0.65 g, 6.6 mmol) were added into dioxane (15 mL), under nitrogen gas atmosphere, the reaction mixture was heated to 100C and stirred for 18h. The reaction mixture was poured into H2O, extracted with EtOAc. The combined extraction liquid was washed with brines, dried over sodium sulfate and concentrated to dry, finally purified by column chromatography (PE:EtOAc = 5:1) to deliver compound 116-4 (0.5 g, yield 28%) as white solid.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 4-Oxo-cyclohexanecarbonitrile, its application will become more common.
Reference:
Patent; GUANGDONG ZHONGSHENG PHARMACEUTICAL CO., LTD; WU, Hao; LIN, Jun; LI, Yunhui; WEI, Changqing; CHEN, Shuhui; LONG, Chaofeng; CHEN, Xiaoxin; LIU, Zhuowei; CHEN, Lijuan; (212 pag.)EP3124482; (2017); A1;,
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