Cyanide → 3,4-Dimethoxybenzene-1-carbonyl cyanide

HRID 1467357노트

반응식

HRID 1467357 반응식
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:9]=[CH:10][C:11]=1[O:12][CH3:13])[C:6](Cl)=[O:7].[C:14](#[N:16])C.[C-]#N>C1(C)C=CC=CC=1.[Cu]>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:9]=[CH:10][C:11]=1[O:12][CH3:13])[C:6]([C:14]#[N:16])=[O:7]

참가 물질

6

반응물 3

HCID 5975CyanideHCID 6342AcetonitrileHCID 77070Veratroyl chloride

생성물 1

HCID 2694353,4-Dimethoxybenzene-1-carbonyl cyanide

시약·촉매·용매 2

HCID 23978Copper촉매HCID 1140Toluene용매2회

실험 절차

A well stirred mixture [paddle stirrer] of 3,4-dimethoxybenzoyl chloride [AcrosOrganics] (14.05 g; 0.070 mol), dry toluene (32 cm3), dry acetonitrile (8.0 cm3), copper I cyanide (8.5; 0.095 mol) and Celite (5 g) was heated under reflux until no acid chloride remained (˜1.5 hrs). The dark reaction mixture was cooled to ˜70° and diluted with toluene (150 cm3). After stirring for an additional ˜30 minutes, the resulting slurry was filtered through a bed of chromatographic silica gel (˜2.5 cm) and the pale yellow filtrate evaporated in vacuo to constant weight to give the title compound as a lemon yellow solid. Yield=11.41 g (85.3%), Mpt=143-145° C. The product was used directly in next stage.

후처리

  1. temperaturewas heated
  2. custom(˜1.5 hrs)
  3. customThe dark reaction mixture
  4. temperaturewas cooled to ˜70°
  5. filtrationthe resulting slurry was filtered through a bed of chromatographic silica gel (˜2.5 cm)
  6. customthe pale yellow filtrate evaporated in vacuo to constant weight

출처 및 근거

ORD 기록
ord-339e98a129ef49caa026efbf1151d00b
출처 데이터셋
uspto-grants-2015_04
특허 번호
US09000155B2

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