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Dimethylformamide → 3-Chloro-5-[2-(4-methoxy-2-methylphenyl)ethynyl]-2-pyridinecarbonitrile

HRID 2167633
노트
인쇄 미리보기

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HRID 2167633 반응식
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([O:9][CH3:10])=[CH:5][C:4]=1[CH3:11])#[CH:2].[Cl:12][C:13]1[C:14]([C:20]#[N:21])=[N:15][CH:16]=[C:17](Cl)[CH:18]=1.C(N(CC)CC)C.CN(C=O)C>[Cu]I.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.CCOC(C)=O>[Cl:12][C:13]1[C:14]([C:20]#[N:21])=[N:15][CH:16]=[C:17]([C:2]#[C:1][C:3]2[CH:8]=[CH:7][C:6]([O:9][CH3:10])=[CH:5][C:4]=2[CH3:11])[CH:18]=1
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

8

반응물 4

HCID 6228DimethylformamideHCID 8471TriethylamineHCID 27696993,5-Dichloro-2-cyanopyridineHCID 162137961-Ethynyl-4-methoxy-2-methylbenzene

생성물 1

HCID 581665223-Chloro-5-[2-(4-methoxy-2-methylphenyl)ethynyl]-2-pyridinecarbonitrile

시약·촉매·용매 3

HCID 24350
Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)
촉매
HCID 178418476HCID 178418476, 화합물촉매
HCID 8857Ethyl Acetate용매

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온도
60 °C

실험 절차

To a round bottom flask capped with septa was added 1-ethynyl-4-methoxy-2-methylbenzene (1.1 eq), 3,5-dichloropicolinonitrile (1 eq.), triethylamine (5 eq.), and anhydrous DMF (0.2 M). The mixture was degassed (vacuum) and nitrogen flushed three times. CuI (0.05 eq.) and bis(triphenylphosphine)dichloro-palladium(II) (0.05 eq) were added and the septum was replaced with a refluxing condenser and the flask was heated at 60° C. overnight under nitrogen atmosphere. Upon completion of the reaction as monitored by TLC, the content of the flask was loaded onto a large silica gel column pretreated with hexanes. Flash chromatography (silica gel, hexanes:EtOAc (1:4%)) afforded the product 3-chloro-5-((4-methoxy-2-methylphenyl)ethynyl)picolinonitrile (B-1).

후처리

  1. customTo a round bottom flask capped with septa
  2. customThe mixture was degassed (vacuum) and nitrogen
  3. customflushed three times
  4. customthe septum was replaced with a refluxing condenser
  5. customUpon completion of the reaction

출처 및 근거

ORD 기록
ord-3d13521280584e91917287db51313778
출처 데이터셋
uspto-grants-2015_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09045470B2

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