Hydrochloric Acid → HCID 178418576、化合物

HRID 5251

反応式

HRID 5251 の反応式
[CH2:1]1[C:6](=[O:7])[O:5][CH2:4][C:2]1=[O:3].C(N(CC)CC)C.Cl.CN(C)CCCN=C=NCC.[CH2:27]([C:34]1[CH:49]=[CH:48][C:37]([O:38][CH:39](C)[CH2:40][CH2:41][CH2:42][CH2:43][C:44](O)=[O:45])=[CH:36][CH:35]=1)[CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH3:33].Cl>CN(C)C=O.CN(C)C1C=CN=CC=1>[CH2:27]([C:34]1[CH:49]=[CH:48][C:37]([O:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][C:44]([C:1]2[C:6](=[O:7])[O:5][CH2:4][C:2]=2[OH:3])=[O:45])=[CH:36][CH:35]=1)[CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH3:33]

参加物

8

反応物 5

HCID 313Hydrochloric AcidHCID 8471TriethylamineHCID 521261Tetronic acidHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 229027806-(4-Heptylphenoxy)heptanoic acid

生成物 1

HCID 178418576HCID 178418576、化合物収率 50%

試薬・触媒・溶媒 2

HCID 142844-(Dimethylamino)pyridine触媒HCID 6228Dimethylformamide溶媒

実験手順

To a stirring solution of 1.1 g (10.98 mmol) of tetronic acid in 25 mL of dimethylformamide is added 1.53 mL (10.98 mmol) of triethylamine and 400 mg of 4-dimethylaminopyridine at 0° C. Next, 2.28 g (11.98 mmol) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride and 3.38 g (10.98 mmol) of 6-(4-heptylphenoxy)heptanoic acid are added and the reaction mixture is stirred for 3 days at room temperature. The reaction mixture is acidified with 1.0N HCl and extracted with three 200 mL portions of ether. The combined organic layers are dried over MgSO4 and concentrated in vacuo. Trituration of the crude product in ethyl acetate/hexane affords 2.1 g (50%) of 3-[6-(4-heptylphenoxy)-1-oxohexyl]-4-hydroxy-2(5H)-furanone.

後処理

  1. extractionextracted with three 200 mL portions of ether
  2. dry with materialThe combined organic layers are dried over MgSO4
  3. concentrationconcentrated in vacuo

出典と根拠

ORDレコード
ord-97431224e9364eb9a27d4b64804e66df
出典データセット
uspto-grants-1993_09
特許番号
US05242945

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