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Sodium borohydride → Methyl 2-hydroxy-4-[3-hydroxy-3-(5,6,7,8-tetrahydro-5,6,8,8-tetramethyl-2-naphthyl)-1-propynyl]benzoate

HRID 861766
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HRID 861766 반응식
[OH:1][C:2]1[CH:11]=[C:10]([C:12]#[C:13][C:14](=[O:29])[C:15]2[CH:24]=[CH:23][C:22]3[C:21](C)([CH3:25])[CH2:20][CH2:19][C:18]([CH3:28])([CH3:27])[C:17]=3[CH:16]=2)[CH:9]=[CH:8][C:3]=1[C:4]([O:6][CH3:7])=[O:5].CO.[CH2:32]1COCC1.[BH4-].[Na+]>O>[OH:1][C:2]1[CH:11]=[C:10]([C:12]#[C:13][CH:14]([OH:29])[C:15]2[CH:24]=[CH:23][C:22]3[CH:21]([CH3:25])[CH:20]([CH3:32])[CH2:19][C:18]([CH3:27])([CH3:28])[C:17]=3[CH:16]=2)[CH:9]=[CH:8][C:3]=1[C:4]([O:6][CH3:7])=[O:5]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 4311764Sodium borohydrideHCID 15285826Methyl 2-hydroxy-4-[3-oxo-3-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)-1-propynyl]benzoateHCID 21899815MeOH tetrahydrofuran

생성물 1

HCID 19700225Methyl 2-hydroxy-4-[3-hydroxy-3-(5,6,7,8-tetrahydro-5,6,8,8-tetramethyl-2-naphthyl)-1-propynyl]benzoate

시약·촉매·용매 1

HCID 962Water용매

실험 절차

2.9 g (7.4 mmol) of methyl 2-hydroxy-4-[3-oxo-3-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)-1-propynyl]benzoate and 100 ml of a methanol/THF (50/50) mixture were introduced into a round-bottomed flask and 140 mg (3.7 mmol) of sodium borohydride were added in small amounts. The reaction mixture was stirred at room temperature for 2 hours, poured into water and extracted with ethyl ether. The organic phase was separated by settling, dried over magnesium sulfate and evaporated. The residue obtained was purified by chromatography on a silica column eluted with a mixture of dichloromethane and hexane (50/50). After evaporation of the solvents, 1.6 g (55%) of the expected compound, with a melting point of 92°-93° C., was recovered.

후처리

  1. extractionextracted with ethyl ether
  2. customThe organic phase was separated
  3. dry with materialdried over magnesium sulfate
  4. customevaporated
  5. customThe residue obtained
  6. customwas purified by chromatography on a silica column
  7. washeluted with a mixture of dichloromethane and hexane (50/50)
  8. customAfter evaporation of the solvents, 1.6 g (55%) of the expected compound
  9. customwith a melting point of 92°-93° C., was recovered

출처 및 근거

ORD 기록
ord-5a53f3391e9d426ab9ebd166208c1048
출처 데이터셋
uspto-grants-1998_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05716624

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