4-Fluorobenzoyl chloride → HCID 18424154, 화합물

HRID 1282368노트

반응식

HRID 1282368 반응식
[F:1][C:2]1[CH:10]=[CH:9][C:5]([C:6](Cl)=[O:7])=[CH:4][CH:3]=1.[Cl-].[Al+3].[Cl-].[Cl-].[CH3:15][N:16]1[CH:20]=[C:19]([CH3:21])[CH:18]=[C:17]1[CH2:22][C:23]([O:25][CH2:26][CH3:27])=[O:24]>ClCCCl>[CH3:15][N:16]1[C:20]([C:6](=[O:7])[C:5]2[CH:9]=[CH:10][C:2]([F:1])=[CH:3][CH:4]=2)=[C:19]([CH3:21])[CH:18]=[C:17]1[CH2:22][C:23]([O:25][CH2:26][CH3:27])=[O:24]

참가 물질

5

반응물 3

HCID 678794-Fluorobenzoyl chlorideHCID 118467Ethyl 1,4-dimethyl-1H-pyrrole-2-acetateHCID 6451240Aluminum(III) Chloride

생성물 1

HCID 18424154HCID 18424154, 화합물수율 25%

시약·촉매·용매 1

HCID 111,2-Dichloroethane용매2회

실험 절차

A solution of 3.95 g. (0.025 mole) of p-fluorobenzoyl chloride and 3.32 g. (0.025 mole) of aluminum chloride in 20 ml. of 1,2-dichloroethane is added dropwise to a solution of 4.52 g. (0.025 mole) of ethyl 1,4-dimethylpyrrole-2-acetate in 20 ml. of 1,2-dichloroethane at room temperature. The reaction mixture is stirred for 2 hours, and then cooled and poured into ice-dilute HCl. The organic phase is separated and washed successively with N,N-dimethyl-1,3-propanediamine, dilute hydrochloric acid and a saturated solution of sodium chloride; dried over anhydrous magnesium sulfate; and the solvent evaporated. The residue is triturated with hot hexane and crystals form upon cooling. There is obtained about 1.9 g. (25% yield) of ethyl 1,4-dimethyl-5-(p-fluorobenzoyl)-pyrrole-2-acetate as a white solid, m.p. 84-86° C. Upon recrystallization from methanol, the m.p. is 87-89° C.

후처리

  1. customat room temperature
  2. temperaturecooled
  3. additionpoured into ice-dilute HCl
  4. customThe organic phase is separated
  5. washwashed successively with N,N-dimethyl-1,3-propanediamine, dilute hydrochloric acid
  6. dry with materialdried over anhydrous magnesium sulfate
  7. customand the solvent evaporated
  8. customThe residue is triturated with hot hexane and crystals
  9. customform
  10. temperatureupon cooling
  11. customThere is obtained about 1.9 g

출처 및 근거

ORD 기록
ord-4f70cac99b42464f81354ef206c8a21f
출처 데이터셋
uspto-grants-2002_09
특허 번호
US06455703B2

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