2-Butoxyethanol → 2-Butoxyethyl Levulinate

HRID 25892

反応式

HRID 25892 の反応式
[CH2:1]([O:5][CH2:6][CH2:7]O)[CH2:2][CH2:3][CH3:4].[C:9]([OH:16])(=[O:15])[CH2:10][CH2:11][C:12]([CH3:14])=[O:13].CCCCCCCC(O[Sn](OC(CCCCCCC)=O)(CCCC)CCCC)=O>C1(C)C(C)=CC=CC=1>[C:9]([O:16][CH2:7][CH2:6][O:5][CH2:1][CH2:2][CH2:3][CH3:4])(=[O:15])[CH2:10][CH2:11][C:12]([CH3:14])=[O:13]

参加物

5

反応物 3

HCID 81332-ButoxyethanolHCID 11579Levulinic AcidHCID 16683953Dibutyltin dioctanoate

生成物 1

HCID 213256432-Butoxyethyl Levulinate

試薬・触媒・溶媒 1

HCID 7237O-Xylene溶媒

実験手順

2 -Butoxyethanol (Butyl Cellosolve) 354g (3 mol), 232g (2 mol) levulinic acid and 1.5g dibutyl tin dioctoate were heated with a xylene azeotrope for 24 hours 151°-177° to AN 2.3 while collecting 42g water. Product was washed with sat. NaHCO3 and water, dried with anhy. MgSO4 and distilled. Ester product was collected in fr 2 and 3 120°-131° 1 mm. Yield was 349g, 81%, 96% ester product by gc.

後処理

  1. customwhile collecting 42g water
  2. washProduct was washed with sat. NaHCO3 and water
  3. customdried with anhy
  4. distillationMgSO4 and distilled
  5. customEster product was collected in fr 2 and 3 120°-131° 1 mm
  6. customYield

出典と根拠

ORDレコード
ord-abc3c1bef80649e3acc4e6b3f41db6cd
出典データセット
uspto-grants-1979_04
特許番号
US04147686

関連ノート

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