Veratrole → HCID 69463159, 화합물

HRID 347396

반응식

HRID 347396 반응식
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[O:9][CH3:10].[C:11]([O:14][CH:15](OC(=O)C)[C:16]([CH3:18])=[CH2:17])(=[O:13])[CH3:12]>[Cl-].[Zn+2].[Cl-]>[C:11]([O:14][CH:15]=[C:16]([CH3:18])[CH2:17][C:6]1[CH:7]=[CH:8][C:3]([O:2][CH3:1])=[C:4]([O:9][CH3:10])[CH:5]=1)(=[O:13])[CH3:12]

참가 물질

4

반응물 2

HCID 7043VeratroleHCID 25305Methacrolein diacetate

생성물 1

HCID 69463159HCID 69463159, 화합물수율 95.1%

시약·촉매·용매 1

HCID 3007855Zincchloride촉매

반응 조건

온도
25.5 °C

실험 절차

In an argon gas atmosphere, a four necked flask having a capacity of 100 ml was charged with 69.2 g (500 m moles) of 1,2-dimethoxybenzene and 9.61 g (50 m moles) of 3,3-diacetoxy-2-methylpropene having a purity degree of 89.6% by mass. Then, the resultant mixture was mixed with 1.36 g (10 m moles) of zinc chloride at an internal temperature of 25 to 26° C. The mixture was stirred at an internal temperature of 25 to 26° C. for 1.5 hours to cause the mixed compounds to react with each other. After the reaction was completed, the resultant reaction liquid was washed three times with 50 ml of saturated aqueous sodium chloride solution. The resultant reaction liquid was subjected to a layer separation treatment, the resultant organic layer was collected and subjected to a distillation under reduced pressure (8 to 10 mmHg, 80 to 84° C.), the resultant residue was refined by a chromatography on silica gel using an elusion solvent:hexane/ethyl acetate mixture in a mixing ratio by volume of 10/1. The target 1-acetoxy-2-methyl-3-(3,4-dimethoxyphenyl)propene was obtained in a yield of 95.1% in an amount of 11.9 g in the form of a colorless liquid.

후처리

  1. customto react with each other
  2. customthe resultant reaction liquid
  3. washwas washed three times with 50 ml of saturated aqueous sodium chloride solution
  4. customThe resultant reaction liquid
  5. customwas subjected to a layer separation treatment
  6. customthe resultant organic layer was collected
  7. distillationsubjected to a distillation under reduced pressure (8 to 10 mmHg, 80 to 84° C.)

출처 및 근거

ORD 기록
ord-7b2c9bc7e1cc44589c1375ebe26da0ff
출처 데이터셋
uspto-grants-2007_02
특허 번호
US07173148B2

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