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Hydrochloric Acid → 4-((Z)-(4-(2-fluorobenzyl)-3,4-dihydro-3-oxobenzo[b][1,4]thiazin-2-ylidene)methyl)benzoic acid

HRID 576501
ノート
印刷プレビュー

反応式

HRID 576501 の反応式
[F:1][C:2]1[CH:19]=[CH:18][CH:17]=[CH:16][C:3]=1[CH2:4][N:5]1[C:10](=[O:11])[CH2:9][S:8][C:7]2[CH:12]=[CH:13][CH:14]=[CH:15][C:6]1=2.[CH:20]([C:22]1[CH:31]=[CH:30][C:25]([C:26]([O:28]C)=[O:27])=[CH:24][CH:23]=1)=O.CC[O-].[Na+].Cl>C1COCC1>[F:1][C:2]1[CH:19]=[CH:18][CH:17]=[CH:16][C:3]=1[CH2:4][N:5]1[C:10](=[O:11])/[C:9](=[CH:20]/[C:22]2[CH:31]=[CH:30][C:25]([C:26]([OH:28])=[O:27])=[CH:24][CH:23]=2)/[S:8][C:7]2[CH:12]=[CH:13][CH:14]=[CH:15][C:6]1=2
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 313Hydrochloric AcidHCID 15294Methyl 4-FormylbenzoateHCID 2723922Sodium ethoxideHCID 32444154-(2-fluorobenzyl)-2H-benzo[b][1,4]thiazin-3(4H)-one

生成物 1

HCID 585388614-((Z)-(4-(2-fluorobenzyl)-3,4-dihydro-3-oxobenzo[b][1,4]thiazin-2-ylidene)methyl)benzoic acid収率 76.1%

試薬・触媒・溶媒 1

HCID 8028
Tetrahydrofuran
溶媒

反応条件

温度
70 °C

実験手順

4-(2-fluorobenzyl)-2H-benzo[b][1,4]thiazin-3(4H)-one (1 g, 3.66 mmole) and methyl 4-formylbenzoate (1.2 g) were dissolved in THF (20 mL) and to the solution was added NaOEt (1 g). The reaction solution was heated at 70° C. overnight and aqueous HCl (5%, 10 mL) was added to quench the reaction. The mixture was extracted with EtOAc (50 mL) twice and combined organic layers were dried over anhydrous magnesium sulfate. After filtration, the solvent was removed under vacuum to give 4-((Z)-(4-(2-fluorobenzyl)-3,4-dihydro-3-oxobenzo[b][1,4]thiazin-2-ylidene)methyl)benzoic acid (1.13 g, 71%).

後処理

  1. customto quench
  2. customthe reaction
  3. extractionThe mixture was extracted with EtOAc (50 mL) twice
  4. dry with materialwere dried over anhydrous magnesium sulfate
  5. filtrationAfter filtration
  6. customthe solvent was removed under vacuum

出典と根拠

ORDレコード
ord-6744debc17454cfeb0e8d060cbb403f2
出典データセット
uspto-grants-2015_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09040508B2

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート