2-Butoxyethanol → 2-Butoxyethyl Levulinate

HRID 2083182노트

반응식

HRID 2083182 반응식
[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]

참가 물질

5

반응물 3

HCID 81332-ButoxyethanolHCID 11579Levulinic AcidHCID 16683953Dibutyltin dioctanoate

생성물 1

HCID 213256432-Butoxyethyl Levulinate

시약·촉매·용매 1

HCID 7237O-Xylene용매

실험 절차

2-Butoxyethanol (Butyl Cellosolve) 354g (3 mol), 232g (2mol) 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.

후처리

  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

출처 및 근거

ORD 기록
ord-427e9db14921449a8f9e69504bb06cab
출처 데이터셋
uspto-grants-1978_04
특허 번호
US04085081

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