Hydrochloric Acid → 5-(1,2-Dihydroxy-2-methylpropyl)-1,3-thiazole-2-carbaldehyde

HRID 1881891ノート

反応式

HRID 1881891 の反応式
[O:1]1CCO[CH:2]1[C:6]1[S:7][C:8]([CH:11]([OH:16])[C:12]([CH3:15])([OH:14])[CH3:13])=[CH:9][N:10]=1.Cl.O.C(=O)([O-])O.[Na+]>O1CCCC1>[OH:16][CH:11]([C:8]1[S:7][C:6]([CH:2]=[O:1])=[N:10][CH:9]=1)[C:12]([OH:14])([CH3:15])[CH3:13]

参加物

6

反応物 4

HCID 313Hydrochloric AcidHCID 962WaterHCID 516892Sodium BicarbonateHCID 593314731-[2-(1,3-Dioxolan-2-yl)-1,3-thiazol-5-yl]-2-methylpropane-1,2-diol

生成物 1

HCID 593314165-(1,2-Dihydroxy-2-methylpropyl)-1,3-thiazole-2-carbaldehyde収率 77.6%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

反応条件

温度
60 °C

実験手順

A mixture of 1-[2-(1,3-dioxolan-2-yl)-1,3-thiazol-5-yl]-2-methylpropane-1,2-diol (0.33 g), 1M hydrochloric acid (1 mL), water (2 mL) and tetrahydrofuran (6 mL) was stirred at 60° C. for 6 hr. To the reaction mixture was added saturated aqueous sodium hydrogen carbonate, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried (MgSO4) and concentrated. The obtained residue was subjected to silica gel column chromatography, and the title compound (0.21 g, yield 77%) was obtained as a yellow oil from a fraction eluted with ethyl acetate. MS: 202 (MH+).

後処理

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with saturated brine
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated

出典と根拠

ORDレコード
ord-f18507960e42431299dfe0f78f367f78
出典データセット
uspto-grants-2012_11
特許番号
US08318746B2

反応ノート

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