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Ethyl Acetate → 6-(3,4-dimethoxyphenyl)-3-methyl-2,4(1H,3H)-pyrimidinedione

HRID 65146
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HRID 65146 반응식
[C:1]([CH2:13][C:14]([O:16]CC)=O)(=O)[C:2]1[CH:11]=[CH:10][C:7]([O:8][CH3:9])=[C:4]([O:5][CH3:6])[CH:3]=1.[CH3:19][NH:20][C:21]([NH2:23])=[O:22].C(OCC)(=O)C>C1C2C(=CC=CC=2)CCC1>[CH3:6][O:5][C:4]1[CH:3]=[C:2]([C:1]2[NH:23][C:21](=[O:22])[N:20]([CH3:19])[C:14](=[O:16])[CH:13]=2)[CH:11]=[CH:10][C:7]=1[O:8][CH3:9]
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 8857Ethyl AcetateHCID 11719MethylureaHCID 2758465Ethyl 3,4-dimethoxybenzoylacetate

생성물 1

HCID 137142586-(3,4-dimethoxyphenyl)-3-methyl-2,4(1H,3H)-pyrimidinedione수율 40.3%

시약·촉매·용매 1

HCID 8404Tetralin용매

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온도
170 °C
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실험 절차

To a solution of ethyl veratroylacetate (8.0 g) in tetralin (24 ml) was added N-methylurea (3.52 g) and the mixture was heated for an hour at 170° C. After being cooled to 95° C., ethyl acetate (33 ml) was added thereto. The precipitate was collected by filtration and washed with ethyl acetate to give 6-(3,4-dimethoxyphenyl)-3-methyl-2,4(1H,3H)-pyrimidinedione (3.35 g).

후처리

  1. temperatureAfter being cooled to 95° C.
  2. filtrationThe precipitate was collected by filtration
  3. washwashed with ethyl acetate

출처 및 근거

ORD 기록
ord-ac4b51625d934dca87d4af4f9d803b3c
출처 데이터셋
uspto-grants-1986_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04612376

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