Cesium fluoride → 6'-Methyl-2,3'-bipyridine-2'-carbonitrile

HRID 61092

반응식

HRID 61092 반응식
Br[C:2]1[C:3]([C:9]#[N:10])=[N:4][C:5]([CH3:8])=[CH:6][CH:7]=1.C([Sn](CCCC)(CCCC)[C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][N:17]=1)CCC.[F-].[Cs+]>CN(C=O)C.[Cu]I.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:8][C:5]1[N:4]=[C:3]([C:9]#[N:10])[C:2]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][N:17]=2)=[CH:7][CH:6]=1

참가 물질

7

반응물 3

HCID 25953Cesium fluorideHCID 6077842-(Tributylstannyl)pyridineHCID 219527473-Bromo-6-methylpyridine-2-carbonitrile

생성물 1

HCID 593637166'-Methyl-2,3'-bipyridine-2'-carbonitrile수율 88%

시약·촉매·용매 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)촉매HCID 178418397HCID 178418397, 화합물촉매HCID 6228Dimethylformamide용매

반응 조건

온도
120 °C

실험 절차

A mixture of 3-bromo-6-methylpicolinonitrile (1 g, 5.1 mmol), 2-(tributylstannyl)pyridine (2.43 ml, 6.60 mmol), cesium fluoride (150 mg, 10.2 mmol), CuI (193 mg, 1.02 mmol) and Pd(PPh3)4 (586 mg, 0.51 mmol) in DMF (10 mL) was degassed and heated at 120° C. for 1 h in a microwave reactor. The solvent was removed in vacuo to obtain the crude which was purified by silica gel chromatography (0˜100% DCM/EtOAc) to yield the title compound as a brown oil (0.87 g, 88%). MS (ESI) 196 (M+H).

후처리

  1. customwas degassed
  2. customThe solvent was removed in vacuo
  3. customto obtain the crude which
  4. customwas purified by silica gel chromatography (0˜100% DCM/EtOAc)

출처 및 근거

ORD 기록
ord-ca8ed7fd06cf4ff3a8a7b5ac5854dc1b
출처 데이터셋
uspto-grants-2016_09
특허 번호
US09440982B2

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