3-碘-1H-吡唑并[3,4-C]吡啶性質(zhì)、用途與生產(chǎn)工藝
生產(chǎn)方法
以1H-吡唑并[3,4-c]吡啶為原料合成3-碘-1H-吡唑并[3,4-c]吡啶的一般步驟:將1H-吡唑并[3,4-c]吡啶(300 mg,2.52 mmol,1.00當(dāng)量)、氫氧化鉀(KOH,500 mg,8.91 mmol,3.50當(dāng)量)和二碘甲烷(1.28 g,5.04 mmol,2.00當(dāng)量)懸浮于N,N-二甲基甲酰胺(DMF,10 mL)中。反應(yīng)混合物在室溫下攪拌過夜。反應(yīng)完成后,用水淬滅反應(yīng),用乙酸乙酯萃取有機(jī)相,有機(jī)層用無水硫酸鈉干燥,減壓濃縮。粗產(chǎn)物通過硅膠柱色譜純化,洗脫劑為乙酸乙酯/石油醚(1:1,v/v),得到3-碘-1H-吡唑并[3,4-c]吡啶(577 mg,收率84%)為黃色固體。LC-MS(ESI,m/z):246 [M + H]+。
參考文獻(xiàn):
[1] Patent: WO2015/25025, 2015, A1. Location in patent: Page/Page column 357
[2] Patent: WO2017/98328, 2017, A2. Location in patent: Paragraph 00222
[3] Patent: WO2018/15818, 2018, A2. Location in patent: Paragraph 00177
[4] Patent: WO2012/93101, 2012, A1. Location in patent: Page/Page column 152
[5] Patent: WO2014/2053, 2014, A1. Location in patent: Page/Page column 51
3-碘-1H-吡唑并[3,4-C]吡啶
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