Hexane → HCID 18673776, 화합물

HRID 2299034노트

반응식

HRID 2299034 반응식
C([Li])CCC.CCCCCC.Br[C:13]1[CH:18]=[CH:17][CH:16]=[C:15]([O:19][CH2:20][CH3:21])[N:14]=1.[CH2:22]([Sn:26](Cl)([CH2:31][CH2:32][CH2:33][CH3:34])[CH2:27][CH2:28][CH2:29][CH3:30])[CH2:23][CH2:24][CH3:25]>CCOCC>[CH2:20]([O:19][C:15]1[N:14]=[C:13]([Sn:26]([CH2:27][CH2:28][CH2:29][CH3:30])([CH2:31][CH2:32][CH2:33][CH3:34])[CH2:22][CH2:23][CH2:24][CH3:25])[CH:18]=[CH:17][CH:16]=1)[CH3:21]

참가 물질

6

반응물 4

HCID 8058HexaneHCID 15096Tributyltin ChlorideHCID 12010182-Bromo-6-ethoxypyridineHCID 178418339Butyllithium

생성물 1

HCID 18673776HCID 18673776, 화합물수율 34.4%

시약·촉매·용매 1

HCID 3283Diethyl Ether용매

실험 절차

A 2.5M solution of n-butyllithium in hexane (4.5 ml, 11.3 mmol) was added to a stirred solution of 2-bromo-6-ethoxypyridine (Rec. Trav. chim., 1965, 84, 53; 2.1 g, 11.3 mmol) in anhydrous ether (25 ml), under nitrogen, at about −40° C. After about 20 minutes, tri-n-butyltin chloride (3.1 ml, 11.4 mmol) was slowly added and, after a further 15 minutes, the reaction mixture was allowed to warm to room temperature. The resulting mixture was quenched by the addition of aqueous ammonium chloride solution, then the organic phase separated, washed with water, dried (MgSO4) and evaporated under reduced pressure. The residue was purified by flash chromatography, using an elution gradient of pentane:dichloromethane (100:0 to 80:20), to give the title compound (1.6 g, 34%) as a colourless oil. δ(CDCl3): 0.90 (t,9H), 1.08 (t,6H), 1.30-1.42 (m,9H), 1.58 (m,6H), 4.40 (q,2H), 6.53 (d,1H), 6.97 (d,1H), 7.39 (dd,1H).

후처리

  1. customThe resulting mixture was quenched by the addition of aqueous ammonium chloride solution
  2. customthe organic phase separated
  3. washwashed with water
  4. dry with materialdried (MgSO4)
  5. customevaporated under reduced pressure
  6. customThe residue was purified by flash chromatography

출처 및 근거

ORD 기록
ord-10064a0595f443ea92d1f483a742133a
출처 데이터셋
uspto-grants-2002_12
특허 번호
US06495568B1

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