Piperidine → Tert-butyl 6-piperidin-1-ylpyridine-3-carboxylate

HRID 395

반응식

HRID 395 반응식
C1CCNCC1.CC(C)(C)OC(=O)c1ccc(Br)nc1>C1COCCO1.CC(=O)O.CC(=O)O.O=C([O-])[O-].[Cs+].[Cs+].[Pd].c1ccc(P(c2ccccc2)c2ccc3ccccc3c2-c2c(P(c3ccccc3)c3ccccc3)ccc3ccccc23)cc1>CC(C)(C)OC(=O)c1ccc(N2CCCCC2)nc1

참가 물질

7

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온도
80 °C

실험 절차

In a 100 mL round-bottomed flask was tert-butyl 6-bromonicotinate (516 mg, 2 mmol), piperidine (237 µl, 2.40 mmol), and CESIUM CARBONATE (977 mg, 3.00 mmol) in dioxane (9763 µl) to give a white suspension. The solution was degassed with N2 (g) fo 20 mins. PALLADIUM(II) ACETATE (22.45 mg, 0.10 mmol) and BINAP (62.3 mg, 0.10 mmol) were added under N2 (g) and the reaction was heated to 100 °C. Start Time: 01-Jul-10 1:10:32 PM -0400. The reaction was checked by LC-MS (complete), filtered, rinsed with DCM, concentrated in vacuo. _02 July 2010_ Purification by Iscos (25 g) using 100% Hexanes -> 50% EtOAc in Hexanes afforded a white solid. 325 mg obtained. 1H NMR (300 MHz, DMSO- _d_ 6) d ppm 1.51 - 1.57 (m, 12 H) 1.57 - 1.77 (m, 5 H) 3.58 - 3.74 (m, 4 H) 6.78 - 6.92 (m, 1 H) 7.88 (dd, _J_ =9.16, 2.36 Hz, 1 H) 8.60 (dd, _J_ =2.45, 0.57 Hz, 1 H). LC-MS: Rt = 2.37 min. Method: Short Purity. MS ES+: 263.2 [M+H]+.

출처 및 근거

ORD 기록
ord-b099625680284510ba7d7318538524ab
출처 데이터셋
750 AstraZeneca ELN dataset
원본 링크
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