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Methyl Isobutyl Ketone → 5-chloro-1-{1-[3-(2-oxo-3(2H)-benzoxazolyl)propyl]-4-piperidinyl}-1,3-dihydro-2H-benzimidazol-2-one

HRID 46907
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인쇄 미리보기

반응식

HRID 46907 반응식
Cl[CH2:2][CH2:3][CH2:4][N:5]1[C:9]2[CH:10]=[CH:11][CH:12]=[CH:13][C:8]=2[O:7][C:6]1=[O:14].[Cl:15][C:16]1[CH:31]=[CH:30][C:19]2[N:20]([CH:24]3[CH2:29][CH2:28][NH:27][CH2:26][CH2:25]3)[C:21](=[O:23])[NH:22][C:18]=2[CH:17]=1.C(=O)([O-])[O-].[Na+].[Na+].CC(C)CC(=O)C>O>[Cl:15][C:16]1[CH:31]=[CH:30][C:19]2[N:20]([CH:24]3[CH2:25][CH2:26][N:27]([CH2:2][CH2:3][CH2:4][N:5]4[C:9]5[CH:10]=[CH:11][CH:12]=[CH:13][C:8]=5[O:7][C:6]4=[O:14])[CH2:28][CH2:29]3)[C:21](=[O:23])[NH:22][C:18]=2[CH:17]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 7909Methyl Isobutyl KetoneHCID 10340Sodium CarbonateHCID 1046075-Chloro-1,3-dihydro-1-(4-piperidinyl)-2H-benzimidazol-2-oneHCID 100360722(3H)-Benzoxazolone, 3-(3-chloropropyl)-

생성물 1

HCID 203855635-chloro-1-{1-[3-(2-oxo-3(2H)-benzoxazolyl)propyl]-4-piperidinyl}-1,3-dihydro-2H-benzimidazol-2-one수율 47%

시약·촉매·용매 1

HCID 962Water용매2회

실험 절차

A mixture of 4.7 parts of 3-(3-chloropropyl)-2(3H)-benzoxazolone, 5 parts of 5-chloro-1,3-dihydro-1-(4-piperidinyl)-2H-benzimidazol-2-one, 6.4 parts of sodium carbonate and 200 parts of 4-methyl-2-pentanone is stirred and refluxed overnight with water-separator. After cooling, water is added and the layers are separated. The 4-methyl-2-pentanone phase is dried, filtered and evaporated. The residue is boiled in a mixture of 4-methyl-2-pentanone, 2-propanol and methanol. The whole is cooled and the product is filtered off and dried, yielding 4 parts (47%) of 5-chloro-1-{1-[3-(2-oxo-3(2H)-benzoxazolyl)propyl]-4-piperidinyl}-1,3-dihydro-2H-benzimidazol-2-one; mp. 212.3° C.

후처리

  1. temperatureAfter cooling
  2. customthe layers are separated
  3. dry with materialThe 4-methyl-2-pentanone phase is dried
  4. filtrationfiltered
  5. customevaporated
  6. additionThe residue is boiled in a mixture of 4-methyl-2-pentanone, 2-propanol and methanol
  7. temperatureThe whole is cooled
  8. filtrationthe product is filtered off
  9. customdried

출처 및 근거

ORD 기록
ord-17712f809d5349e385988a18441d2b9c
출처 데이터셋
uspto-grants-1979_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04175129

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