1-Bromo-2-Chloroethane → 1-(2,2-Difluorobenzo[D][1,3]dioxol-5-YL)cyclopropanecarbonitrile

HRID 17903

반응식

HRID 17903 반응식
[OH-].[Na+].[F:3][C:4]1([F:16])[O:8][C:7]2[CH:9]=[CH:10][C:11]([CH2:13][C:14]#[N:15])=[CH:12][C:6]=2[O:5]1.Br[CH2:18][CH2:19]Cl>[Cl-].C([N+](CC)(CC)CC)C1C=CC=CC=1.O>[F:16][C:4]1([F:3])[O:8][C:7]2[CH:9]=[CH:10][C:11]([C:13]3([C:14]#[N:15])[CH2:19][CH2:18]3)=[CH:12][C:6]=2[O:5]1

참가 물질

6

반응물 3

HCID 78491-Bromo-2-ChloroethaneHCID 14798Sodium HydroxideHCID 203113842,2-Difluoro-1,3-benzodioxole-5-acetonitrile

생성물 1

HCID 574461501-(2,2-Difluorobenzo[D][1,3]dioxol-5-YL)cyclopropanecarbonitrile

시약·촉매·용매 2

HCID 66133Benzyl triethylammonium chloride촉매HCID 962Water용매

반응 조건

온도
70 °C

실험 절차

Sodium hydroxide (50% aqueous solution, 10 mL) was slowly added to a mixture of crude (2,2-difluoro-benzo[1,3]dioxol-5-yl)-acetonitrile, benzyltriethylammonium chloride (3.00 g, 15.3 mmol), and 1-bromo-2-chloroethane (4.9 g, 38 mmol) at 70° C. The mixture was stirred overnight at 70° C. before the reaction mixture was diluted with water (30 mL) and extracted with ethyl acetate. The combined organic layers were dried over sodium sulfate and evaporated to dryness to give crude 1-(2,2-difluoro-benzo[1,3]dioxol-5-yl)-cyclopropanecarbonitrile, which was used directly in the next step.

후처리

  1. extractionextracted with ethyl acetate
  2. dry with materialThe combined organic layers were dried over sodium sulfate
  3. customevaporated to dryness

출처 및 근거

ORD 기록
ord-e843f72fe235471d8175384cfbb0c682
출처 데이터셋
uspto-grants-2010_06
특허 번호
US07741321B2

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