Epichlorohydrin → 4-(3-chloro-2-hydroxypropylamino)-N-methylphthalimide

HRID 443741

反応式

HRID 443741 の反応式
[NH2:1][C:2]1[CH:3]=[C:4]2[C:9](=[O:10])[N:8]([CH3:11])[C:6](=[O:7])[C:5]2=[CH:12][CH:13]=1.[Cl:14][CH2:15][CH:16]1[O:18][CH2:17]1>FC(F)(F)CO>[Cl:14][CH2:15][CH:16]([OH:18])[CH2:17][NH:1][C:2]1[CH:3]=[C:4]2[C:9](=[O:10])[N:8]([CH3:11])[C:6](=[O:7])[C:5]2=[CH:12][CH:13]=1

参加物

4

反応物 2

HCID 7835EpichlorohydrinHCID 7269315-amino-2-methyl-2,3-dihydro-1H-isoindole-1,3-dione

生成物 1

HCID 212817364-(3-chloro-2-hydroxypropylamino)-N-methylphthalimide収率 77.3%

試薬・触媒・溶媒 1

HCID 64092,2,2-Trifluoroethanol溶媒

実験手順

Twenty-five grams (g) (0.142 mole) 4-amino-N-methylphthalimide [Flitsch, Chem. Ber. 94:2494(1961)] and 20.7 g (0.21 mole) 1-chloro-2,3-epoxypropane were added to 150 ml 2,2,2-trifluoroethanol and the reaction mixture was heated to reflux with stirring for 48 hours. Seventy to eighty ml of 2,2,2-trifluoroethanol was removed by distillation and a heavy yellow precipitate formed when the remaining solution cooled to room temperature. This precipitate was triturated with ethyl acetate, collected by filtration and dried to give 29.5 g (77% yield) of the desired phthalimide intermediate m.p. 136°-138.5° C.

後処理

  1. temperaturethe reaction mixture was heated
  2. temperatureto reflux
  3. customSeventy to eighty ml of 2,2,2-trifluoroethanol was removed by distillation
  4. customa heavy yellow precipitate formed when the remaining solution
  5. customThis precipitate was triturated with ethyl acetate
  6. filtrationcollected by filtration
  7. customdried

出典と根拠

ORDレコード
ord-7b0f148de66d487c812caba10f9fd673
出典データセット
uspto-grants-1981_04
特許番号
US04261893

関連ノート

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