Tetrahydrofuran → 4-methoxy-3-[3-[3-(methoxyacetylamino)phenyl]-1-oxo-2-propenyl]-2H-1-benzopyran-2-one

HRID 639744

반응식

HRID 639744 반응식
O1CCC[CH2:2]1.[OH:6][C:7]1[C:12]2[CH:13]=[CH:14][CH:15]=[CH:16][C:11]=2[O:10][C:9](=[O:17])[C:8]=1[C:18](=[O:33])[CH:19]=[CH:20][C:21]1[CH:26]=[CH:25][CH:24]=[C:23]([NH:27][C:28](=[O:32])[CH2:29][O:30][CH3:31])[CH:22]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O>C1(C)C=CC=CC=1.CO.ClCCl>[CH3:2][O:6][C:7]1[C:12]2[CH:13]=[CH:14][CH:15]=[CH:16][C:11]=2[O:10][C:9](=[O:17])[C:8]=1[C:18](=[O:33])[CH:19]=[CH:20][C:21]1[CH:26]=[CH:25][CH:24]=[C:23]([NH:27][C:28](=[O:32])[CH2:29][O:30][CH3:31])[CH:22]=1

참가 물질

8

반응물 4

HCID 8028TetrahydrofuranHCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 761683104-hydroxy-3-[3-[3-(methoxyacetylamino)phenyl]-1-oxo-2-propenyl]-2H-1-benzopyran-2-one

생성물 1

HCID 740200054-methoxy-3-[3-[3-(methoxyacetylamino)phenyl]-1-oxo-2-propenyl]-2H-1-benzopyran-2-one

시약·촉매·용매 3

HCID 887Methanol용매HCID 1140Toluene용매HCID 6344Dichloromethane용매

실험 절차

To a mixture of 5 ml of tetrahydrofuran and 6 ml of dichloromethane were added 0.59 g of 4-hydroxy-3-[3-[3-(methoxyacetylamino)phenyl]-1-oxo-2-propenyl]-2H-1-benzopyran-2-one, 0.45 g of triphenylphosphine and 55 mg of methanol, and to the mixture was added dropwise 0.74 g of a 40% toluene solution of diethyl azodicarboxylate. The mixture was stirred at room temperature for 40 minutes, and the reaction mixture was concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to obtain 0.18 g of 4-methoxy-3-[3-[3-(methoxyacetylamino)phenyl]-1-oxo-2-propenyl]-2H-1-benzopyran-2-one [Compound No. (22d)].

후처리

  1. concentrationthe reaction mixture was concentrated under reduced pressure

출처 및 근거

ORD 기록
ord-c3ef72fda628464293ddb6a778e9f6bb
출처 데이터셋
uspto-grants-2010_04
특허 번호
US07691883B2

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