4-Methyl-3-nitrobenzoic acid → 4-(4-Methyl-3-nitrobenzoyl)morpholine

HRID 2735

反応式

HRID 2735 の反応式
[CH3:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=O)=[CH:4][C:3]=1[N+:11]([O-:13])=[O:12].ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C.[NH:36]1[CH2:41][CH2:40][O:39][CH2:38][CH2:37]1>CN(C=O)C.O.C(N(CC)CC)C>[CH3:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([N:36]2[CH2:41][CH2:40][O:39][CH2:38][CH2:37]2)=[O:8])=[CH:4][C:3]=1[N+:11]([O-:13])=[O:12]

参加物

8

実験手順

The compound ([5]-(53)-278) (6.5272 g) prepared in Example 72 was dissolved in anhydrous DMF (98 ml). Then, 1-hydroxybenzotriazole (6.3297 g), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (8.9795 g), triethylamine (6.5 ml), and morpholine (4.1 ml) were added to the solution. The mixture was stirred at room temperature for 4 hours. A small amount of water was added to the resulting yellowish orange solution including the white salt to obtain a homogeneous solution. The solution was concentrated. The residue was dissolved in chloroform, and the solution was washed with 1N HCl aqueous solution and saturated brine. The organic layer was dried over anhydrous sodium sulfate, and concentrated to obtain yellowish brown crystals (8.9903 g). The product was recrystallized from n-hexane/ethyl acetate to obtain the above-captioned compound ([5]-(54)-278) (7.8455 g) as light yellow crystals.

後処理

  1. customto obtain a homogeneous solution
  2. concentrationThe solution was concentrated
  3. dissolutionThe residue was dissolved in chloroform
  4. washthe solution was washed with 1N HCl aqueous solution and saturated brine
  5. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  6. concentrationconcentrated

出典と根拠

ORDレコード
ord-0fecae8b671b4957a472ce0b500305f7
出典データセット
uspto-grants-1998_03
特許番号
US05731310

関連ノート

読み込み中…