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Dimethylformamide → ethyl (6E)-6-[[4-[(5-methyl-2-thiophen-2-yl-1,3-oxazol-4-yl)methoxy]phenyl]methoxyimino]-6-phenylhexanoate

HRID 1070189
ノート
印刷プレビュー

反応式

HRID 1070189 の反応式
Cl[CH2:2][C:3]1[N:4]=[C:5]([C:9]2[S:10][CH:11]=[CH:12][CH:13]=2)[O:6][C:7]=1[CH3:8].[OH:14][C:15]1[CH:39]=[CH:38][C:18]([CH2:19][O:20]/[N:21]=[C:22](/[C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)\[CH2:23][CH2:24][CH2:25][CH2:26][C:27]([O:29][CH2:30][CH3:31])=[O:28])=[CH:17][CH:16]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>C(OCC)(=O)C.CCCCCC.O>[CH3:8][C:7]1[O:6][C:5]([C:9]2[S:10][CH:11]=[CH:12][CH:13]=2)=[N:4][C:3]=1[CH2:2][O:14][C:15]1[CH:16]=[CH:17][C:18]([CH2:19][O:20]/[N:21]=[C:22](/[C:32]2[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=2)\[CH2:23][CH2:24][CH2:25][CH2:26][C:27]([O:29][CH2:30][CH3:31])=[O:28])=[CH:38][CH:39]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 50764914-(Chloromethyl)-5-methyl-2-(thiophen-2-yl)-1,3-oxazoleHCID 11089565ethyl (6E)-6-[(4-hydroxyphenyl)methoxyimino]-6-phenylhexanoate

生成物 1

HCID 11827573ethyl (6E)-6-[[4-[(5-methyl-2-thiophen-2-yl-1,3-oxazol-4-yl)methoxy]phenyl]methoxyimino]-6-phenylhexanoate収率 95.2%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 21226206Ethyl acetate hexane溶媒

実験手順

A mixture of 4-chloromethyl-5-methyl-2-(2-thienyl)oxazole (397 mg), ethyl E-6-(4-hydroxybenzyloxyimino)-6-phenylhexanoate (600 mg), potassium carbonate (467 mg) and N,N-dimethylformamide (7 ml) was stirred at room temperature for 18 hours. Water was added to the reaction mixture and extracted with ethyl acetate. The ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride, dried (MgSO4) and concentrated. The residue was subjected to silica gel chromatography to obtain ethyl E-6-[4-[5-methyl-2-(2-thienyl)-4-oxazolylmethoxy]benzyloxyimino]-6-phenylhexanoate (856 mg, yield 95%) as a colorless oil from an ethyl acetate-hexane (1:4, v/v)-eluted fraction.

後処理

  1. extractionextracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated

出典と根拠

ORDレコード
ord-436156b4636b4b41b2fe2e904e274ce7
出典データセット
uspto-grants-2001_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06251926B1

反応ノート

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