Chloroethane → 1-Ethyl-4-(3-cyano-4-fluorophenyl)-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarbonitrile

HRID 218483

반응식

HRID 218483 반응식
[C:1]([C:3]1[CH:4]=[C:5]([CH:10]2[C:15]([C:16]#[N:17])=[C:14]([CH3:18])[NH:13][C:12]([CH3:19])=[C:11]2[C:20]#[N:21])[CH:6]=[CH:7][C:8]=1[F:9])#[N:2].[H-].[Na+].C([O-])([O-])=O.[Cs+].[Cs+].[CH2:30](Cl)[CH3:31]>CN(C=O)C>[CH2:30]([N:13]1[C:14]([CH3:18])=[C:15]([C:16]#[N:17])[CH:10]([C:5]2[CH:6]=[CH:7][C:8]([F:9])=[C:3]([C:1]#[N:2])[CH:4]=2)[C:11]([C:20]#[N:21])=[C:12]1[CH3:19])[CH3:31]

참가 물질

6

반응물 4

HCID 6337ChloroethaneHCID 10796Cesium carbonateHCID 24758Sodium hydrideHCID 597632464-(3-Cyano-4-fluorophenyl)-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarbonitrile

생성물 1

HCID 690425561-Ethyl-4-(3-cyano-4-fluorophenyl)-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarbonitrile

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

To a solution of 4-(3-cyano-4-fluorophenyl)-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarbonitrile (1 eq), from Synthetic Example 1, in DMF was added either NaH or Cs2CO3 (1.2 eq) at 0° C. After 30 min, ethyl chloride was introduced. The reaction mixture was stirred at rt overnight, and quenched with brine. The reaction mixture was extracted with EtOAc, washed with brine, and dried. Concentration followed by flash chromatography gave 1-ethyl-4-(3-cyano-4-fluorophenyl)-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarbonitrile. 1H-NMR (400 MHz, DMSO-D6): δ=7.86 (dd, 1H), 7.69 (m, 1H), 7.55 (t, 1H), 4.57 (s, 1H), 3.12 (q, 2H), 2.1 (s, 6H), 1.4 (t, 3H) ppm.

후처리

  1. customquenched with brine
  2. extractionThe reaction mixture was extracted with EtOAc
  3. washwashed with brine
  4. customdried
  5. concentrationConcentration

출처 및 근거

ORD 기록
ord-69f6b9f24fd540fa94884e5aada17ec3
출처 데이터셋
uspto-grants-2012_06
특허 번호
US08198456B2

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