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Hydrochloric Acid → 5-Ethyl 3-methyl 6-(difluoromethyl)-4-(isopropylamino)-2-(trifluoromethyl)-3,5-pyridinedicarboxylate

HRID 255434
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HRID 255434 반응식
[F:1][CH:2]([F:25])[C:3]1[N:8]=[C:7]([C:9]([F:12])([F:11])[F:10])[C:6]([C:13]([O:15][CH3:16])=[O:14])=[C:5]([NH:17][CH:18]([CH3:20])[CH3:19])[C:4]=1[C:21]([O:23][CH3:24])=[O:22].[OH-].[K+].Cl.[C:29]([O-])([O-])=O.[K+].[K+].C(I)C>CN(C=O)C.O>[F:25][CH:2]([F:1])[C:3]1[N:8]=[C:7]([C:9]([F:12])([F:10])[F:11])[C:6]([C:13]([O:15][CH3:16])=[O:14])=[C:5]([NH:17][CH:18]([CH3:20])[CH3:19])[C:4]=1[C:21]([O:23][CH2:24][CH3:29])=[O:22]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

8

반응물 5

HCID 313Hydrochloric AcidHCID 6340IodoethaneHCID 11430Potassium CarbonateHCID 14797Potassium HydroxideHCID 14013774Dimethyl 6-(difluoromethyl)-4-(iso propylamino)-2-(trifluoromethyl)-3,5-pyridine-dicarboxylate

생성물 1

HCID 140138205-Ethyl 3-methyl 6-(difluoromethyl)-4-(isopropylamino)-2-(trifluoromethyl)-3,5-pyridinedicarboxylate
수율 775.4%

시약·촉매·용매 2

HCID 962Water용매3회HCID 6228Dimethylformamide용매

실험 절차

A mixture of 4.1 g (0.001 mol) of product of Example 76, 0.62 g (0.011 mol) of KOH and 5 ml of H2O overnight. The reaction mixture was poured into 250 ml of H2O containing 50 ml of concentrated HCl, extracted with ether, dried (mgSO4) and concentrated in vacuo to 3.76 g of yellow air. This oil, 152 g (0.011 mol) of K2CO3 and 0.88 ml (0.011 mol) of ethyl iodide in 30 ml of DMF was stirred at room temperature overnight. The reaction mixture was poured into water extracted with ether, drid (MgSO4) and concentrated in vacuo to 3.64 g of yellow oil. Kugelrohr distillation at 53 Pa, pot temperature 103° C., afforded 2.98 g (70.5%) of product sa a light yellow oil which solidified; mp 37°-39° C.

후처리

  1. extractionextracted with ether
  2. customdried (mgSO4)
  3. concentrationconcentrated in vacuo to 3.76 g of yellow air
  4. extractionextracted with ether
  5. concentrationconcentrated in vacuo to 3.64 g of yellow oil
  6. distillationKugelrohr distillation at 53 Pa, pot temperature 103° C.

출처 및 근거

ORD 기록
ord-4c69d8c06b17479a8ddebe5a4d38deab
출처 데이터셋
uspto-grants-1987_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04698093

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