Dimethylformamide → ethyl 3-[3-(1,2,3,4-tetrahydronaphthalen-2-yl)-4-dimethylaminomethyl-2-thioxo-2,3-dihydro-1H-imidazol-1-yl]propionate

HRID 863086

反応式

HRID 863086 の反応式
[CH2:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH2:4][CH2:3][CH:2]1[N:11]1[CH:15]=[CH:14][N:13]([CH2:16][CH2:17][C:18]([O:20][CH2:21][CH3:22])=[O:19])[C:12]1=[S:23].[Cl-].CC=[N+]=CC.[CH3:30][N:31]([CH:33]=O)[CH3:32]>>[CH2:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH2:4][CH2:3][CH:2]1[N:11]1[C:15]([CH2:30][N:31]([CH3:33])[CH3:32])=[CH:14][N:13]([CH2:16][CH2:17][C:18]([O:20][CH2:21][CH3:22])=[O:19])[C:12]1=[S:23]

参加物

4

反応物 3

HCID 6228DimethylformamideHCID 19699405ethyl 3-[3-(1,2,3,4-tetrahydronaphthalen-2-yl)-2-thioxo-2,3-dihydro-1H-imidazol-1-yl]propionateHCID 21873455N,N-dimethylmethylene ammonium chloride

生成物 1

HCID 19699336ethyl 3-[3-(1,2,3,4-tetrahydronaphthalen-2-yl)-4-dimethylaminomethyl-2-thioxo-2,3-dihydro-1H-imidazol-1-yl]propionate

反応条件

温度
80 °C

実験手順

A mixture of ethyl 3-[3-(1,2,3,4-tetrahydronaphthalen-2-yl)-2-thioxo-2,3-dihydro-1H-imidazol-1-yl]propionate (0.5 g, 1.5 mmol), prepared as in Example 34, and N,N-dimethylmethyleneammonium chloride (0.17 g, 1.8 mmol) in 7 mL of DMF was heated at 80° C. under nitrogen for 16 hours. The mixture then was partitioned between saturated sodium bicarbonate solution and ethyl acetate. The organic layer was separated, washed with brine, dried (NaSO4), filtered and concentrated. The residue was purified by column chromatography on silica gel eluting with ethyl acetate/hexane to give ethyl 3-[3-(1,2,3,4-tetrahydronaphthalen-2-yl)-4-dimethylaminomethyl-2-thioxo-2,3-dihydro-1H-imidazol-1-yl]propionate (277 mg, 0.7 mmol), m.p. 128°-130° C.

後処理

  1. customThe mixture then was partitioned between saturated sodium bicarbonate solution and ethyl acetate
  2. customThe organic layer was separated
  3. washwashed with brine
  4. dry with materialdried (NaSO4)
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe residue was purified by column chromatography on silica gel eluting with ethyl acetate/hexane

出典と根拠

ORDレコード
ord-b4cba53e4cd54a9bb9eaa88ffaaf75c1
出典データセット
uspto-grants-1998_02
特許番号
US05719280

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