HRID1926320
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
CONDITIONS
反应条件
- 温度
- 35 °C
PROCEDURE
实验过程
To a solution of 4-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-pyrazol-1-yl]-piperidine-1-carboxylic acid tert-butyl ester (1.011 g, 2.68 mmol, 1 eq.) in dioxane (5 mL), 4.0 M of HCl in dioxane (10 mL, 20 eq) was added and the reaction was stirred at 35° C. for 2.5 h. The reaction mixture was concentrated in vacuo, yielding the title material, as a white solid. 1H NMR (400 MHz, CDCl3): δ=1.32 (s, 12H), 2.46 (br s, 4H), 3.18 (br s, 2H), 3.57-3.70 (m, 2H), 4.48 (br s, 1H), 7.78 (s, 1H), 7.79 (s, 1H), 9.54-10.04 (m, 2H). MS (ES+): m/z=278.14 (100) [MH+]. HPLC: tR=1.89 min (ZQ2, polar—5 min).
WORKUP
后处理
- concentrationThe reaction mixture was concentrated in vacuo