Hydrochloric Acid → (2E)-3-[5-({4-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]phenoxy}methyl)-2-phenyl-1,3-oxazol-4-yl]-2-propenoic acid

HRID 2221945ノート

反応式

HRID 2221945 の反応式
[CH3:1][C:2]1[O:6][C:5]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)=[N:4][C:3]=1[CH2:13][O:14][C:15]1[CH:40]=[CH:39][C:18]([O:19][CH2:20][C:21]2[O:25][C:24]([C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)=[N:23][C:22]=2/[CH:32]=[CH:33]/[C:34]([O:36]CC)=[O:35])=[CH:17][CH:16]=1.O1CCCC1.[OH-].[Na+].Cl>O.C(O)C>[CH3:1][C:2]1[O:6][C:5]([C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][CH:12]=2)=[N:4][C:3]=1[CH2:13][O:14][C:15]1[CH:40]=[CH:39][C:18]([O:19][CH2:20][C:21]2[O:25][C:24]([C:26]3[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=3)=[N:23][C:22]=2/[CH:32]=[CH:33]/[C:34]([OH:36])=[O:35])=[CH:17][CH:16]=1

参加物

7

反応物 4

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 86605887ethyl (2E)-3-[5-({4-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]phenoxy}methyl)-2-phenyl-1,3-oxazol-4-yl]-2-propenoate

生成物 1

HCID 69215568(2E)-3-[5-({4-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]phenoxy}methyl)-2-phenyl-1,3-oxazol-4-yl]-2-propenoic acid収率 97.6%

試薬・触媒・溶媒 2

HCID 702Ethanol溶媒HCID 962Water溶媒

実験手順

To a mixture of ethyl (2E)-3-[5-({4-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]phenoxy}methyl)-2-phenyl-1,3-oxazol-4-yl]-2-propenoate (0.40 g), tetrahydrofuran (2 mL) and ethanol (2 mL) was added 1N aqueous sodium hydroxide solution (2 mL), and the mixture was heated under reflux for 1 hr. To the reaction mixture were added 1N hydrochloric acid (2 mL) and water, and the precipitated crystals were collected by filtration to give (2E)-3-[5-({4-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]phenoxy}methyl)-2-phenyl-1,3-oxazol-4-yl]-2-propenoic acid as colorless crystals (0.37 g, yield 97%). Recrystallization from tetrahydrofuran-hexane gave colorless prism crystals. melting point: 209-210° C.

後処理

  1. temperaturethe mixture was heated
  2. temperatureunder reflux for 1 hr
  3. filtrationthe precipitated crystals were collected by filtration

出典と根拠

ORDレコード
ord-bc49e875124b403c9f1f46b8e0b8775c
出典データセット
uspto-grants-2008_05
特許番号
US07368578B2

反応ノート

読み込み中…