Phenylacetone → Oxindole

HRID 27357

反応式

HRID 27357 の反応式
N[N:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH2:4][C:3]1=[O:11].C1(CC(=O)C)C=CC=CC=1>>[NH:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH2:4][C:3]1=[O:11]

参加物

3

実験手順

U.S. Pat. Nos. 4,045,576 and 4,126,635 disclose methods for the preparation of 7-benzoylindolin-2-ones. According to one method, 1-aminoindolin-2-one is reacted with a phenylacetone to give a 1-(α-methylphenethylindenimino) indolin-2-one which is cyclized in ethanolic hydrogen chloride to an ethyl α-(2-methyl-3-phenylindol-7-yl)acetate. This indolylester is treated with ozone in acetic acid solution to give an ethyl 2-acetamido-3-benzoylphenylacetate which is hydrolyzed and cyclized in dilute mineral acid to a 7-benzoylindolin-2-one.

出典と根拠

ORDレコード
ord-1af7a583fb2c48e7b4214560c751454d
出典データセット
uspto-grants-1980_09
特許番号
US04221716

関連ノート

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