1,2-Dibromoethane → 1-(2-Bromoethoxy)-2,4-dichlorobenzene

HRID 42379

반응식

HRID 42379 반응식
[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[OH:9].[Br:10][CH2:11][CH2:12]Br.[OH-].[Na+]>O>[Br:10][CH2:11][CH2:12][O:9][C:3]1[CH:4]=[CH:5][C:6]([Cl:8])=[CH:7][C:2]=1[Cl:1]

참가 물질

5

반응물 3

HCID 78391,2-DibromoethaneHCID 84492,4-DichlorophenolHCID 14798Sodium Hydroxide

생성물 1

HCID 1388811-(2-Bromoethoxy)-2,4-dichlorobenzene수율 62%

시약·촉매·용매 1

HCID 962Water용매2회

실험 절차

A mixture of 2,4-dichlorophenol (105 g, 0.64 mol), 1,2-dibromoethane (157 g, 0.84 mol) and water (500 mL) was heated at reflux, during which time a solution of sodium hydroxide (28.0 g, 0.70 mol) in water (125 mL) was added to the mixture over a period of one hour. The solution was allowed to reflux for 10 hours, cooled and the separated organic layer was distilled to give 1-bromo-2-(2,4-dichlorophenoxy) ethane (106 g, yield 62%). 1HNMR(CDCl3) δ 7.37 (d, 1H, J=2.4 Hz), 7.19 (dd, 1H, J1=8.8 J2=2.4 Hz), 6.88 (d, 1H, J=8.8 Hz), 4.31 (t, 3H, J=6.4 Hz), 3.65 (t, 3H, J=6.4 Hz).

후처리

  1. temperaturewas heated
  2. additionwas added to the mixture over a period of one hour
  3. temperatureto reflux for 10 hours
  4. temperaturecooled
  5. distillationthe separated organic layer was distilled

출처 및 근거

ORD 기록
ord-8dedeea6cfd7473d883675bb783f188d
출처 데이터셋
uspto-grants-2013_09
특허 번호
US08536195B2

연결된 노트

불러오는 중…