Dimethyl Sulfate → HCID 21556730, 화합물

HRID 267289노트

반응식

HRID 267289 반응식
[Br:1][C:2]1[C:7]([CH:8]([CH3:10])[CH3:9])=[CH:6][C:5]([SH:11])=[C:4]([CH:12]([CH3:14])[CH3:13])[CH:3]=1.[OH-].[Na+].[CH3:17]OS(OC)(=O)=O>O>[CH3:17][S:11][C:5]1[CH:6]=[C:7]([CH:8]([CH3:9])[CH3:10])[C:2]([Br:1])=[CH:3][C:4]=1[CH:12]([CH3:14])[CH3:13]

참가 물질

5

반응물 3

HCID 6497Dimethyl SulfateHCID 14798Sodium HydroxideHCID 215567424-Bromo-2,5-di(propan-2-yl)benzene-1-thiol

생성물 1

HCID 21556730HCID 21556730, 화합물수율 77.6%

시약·촉매·용매 1

HCID 962Water용매

실험 절차

A mixture of 78.4 g of 4-bromo-2,5-diisopropylbenzenethiol and 12.8 g of sodium hydroxide was stirred together in 200 ml of water while 50.4 g of dimethylsulfate was added at a rate to maintain the reaction temperature between 45°-55°C. After stirring for 3 hours at ambient temperature, the reaction mixture was extracted with ether. The ether solution, washed with half saturated sodium chloride solution and dried over sodium sulfate, was concentrated to an oil which was distilled to give 64 g of 4-bromo-2,5-diisopropylphenyl methyl sulfide, boiling at 91°-93°C at 0.15-0.1 mm Hg; ND23 1.5714.

후처리

  1. additionwas added at a rate
  2. temperatureto maintain the reaction temperature between 45°-55°C
  3. extractionthe reaction mixture was extracted with ether
  4. washThe ether solution, washed with half saturated sodium chloride solution
  5. dry with materialdried over sodium sulfate
  6. concentrationwas concentrated to an oil which
  7. distillationwas distilled

출처 및 근거

ORD 기록
ord-a802feb0e0ed46c8b18bf7b3216e1a27
출처 데이터셋
uspto-grants-1976_03
특허 번호
US03941826

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