Chloroform → 2-Benzoyl-3-dimethylaminocrotononitrile

HRID 128172

반응식

HRID 128172 반응식
[C:1]([CH2:9][C:10]#[N:11])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(Cl)(Cl)Cl.CO[C:18](OC)([N:20]([CH3:22])[CH3:21])[CH3:19]>C1C=CC=CC=1>[C:1](/[C:9](=[C:18](/[N:20]([CH3:22])[CH3:21])\[CH3:19])/[C:10]#[N:11])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

참가 물질

5

반응물 3

HCID 6212Chloroform2회HCID 64799BenzoylacetonitrileHCID 878351,1-Dimethoxyethyl(dimethyl)amine

생성물 1

HCID 146739772-Benzoyl-3-dimethylaminocrotononitrile

시약·촉매·용매 1

HCID 241Benzene용매

실험 절차

To a solution of 14.5 g. (0.10 m) of benzoylacetonitrile in 100 ml. of chloroform, cooled in an ice-salt bath, was added 13.3 g. (0.1 m) of N,N-dimethylacetamide dimethylacetal in 20 ml. chloroform. The reaction mixture was stirred in the ice-salt bath for 2 hours, then evaporated in vacuo to an orange oil. The oil was dissolved in 150 ml. benzene and passed through Magnesol®. The filtrate was evaporated and the oil thus obtained was dissolved in 50 ml. benzene to which pet ether was added until the solution became cloudy. The precipitate which formed upon cooling was collected. The solid was recrystallized twice from benzene-pet ether, with charcoal treatment to yield 5.8 g. (27%) of light yellow crystals, m.p. 105°-106° C.

후처리

  1. additionwas added 13.3 g
  2. customevaporated in vacuo to an orange oil
  3. dissolutionThe oil was dissolved in 150 ml
  4. customThe filtrate was evaporated
  5. customthe oil thus obtained
  6. dissolutionwas dissolved in 50 ml
  7. customThe precipitate which formed
  8. temperatureupon cooling
  9. customwas collected
  10. customThe solid was recrystallized twice from benzene-pet ether, with charcoal treatment
  11. customto yield 5.8 g

출처 및 근거

ORD 기록
ord-084c675acf0944cf8cdefa7dd2e4ae02
출처 데이터셋
uspto-grants-1981_03
특허 번호
US04259256

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