Hydrochloric Acid → HCID 178418576, 화합물

HRID 5251

반응식

HRID 5251 반응식
[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]

참가 물질

8

반응물 5

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

생성물 1

HCID 178418576HCID 178418576, 화합물수율 50%

시약·촉매·용매 2

HCID 142844-(Dimethylamino)pyridine촉매HCID 6228Dimethylformamide용매

실험 절차

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.

후처리

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

출처 및 근거

ORD 기록
ord-97431224e9364eb9a27d4b64804e66df
출처 데이터셋
uspto-grants-1993_09
특허 번호
US05242945

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