Methallyl alcohol → 2-Methyl-1,4-butanediol

HRID 372409

반응식

HRID 372409 반응식
C[O:2][CH:3]1[CH2:7][CH:6]([CH3:8])[CH2:5][O:4]1.C(O)C(=C)C.[H][H]>[Cr]([O-])([O-])=O.[Cu+2].O>[CH3:8][CH:6]([CH2:7][CH2:3][OH:2])[CH2:5][OH:4].[CH3:8][CH:6]1[CH2:5][O:4][C:3](=[O:2])[CH2:7]1

참가 물질

7

반응물 3

HCID 10557Methallyl alcoholHCID 12270516HCID 12270516, 화합물HCID 178418361HCID 178418361, 화합물

생성물 2

HCID 180532-Methyl-1,4-butanediol수율 70%HCID 98451beta-Methyl-gamma-butyrolactone수율 4%

시약·촉매·용매 2

HCID 178505374HCID 178505374, 화합물촉매HCID 962Water용매

실험 절차

The process is carried out as in Examples 1 - 5 using 50.0 grams of a methanolic co-distillate (boiling range 66° - 78° C) containing 14.8 grams of 2-methoxy-4-methyltetrahydrofuran derived from methallyl alcohol as described in step (a), 30 ml of water and 5.0 grams of powdered copper chromite (Catalysts and Chemicals Co.). The mixture is heated at 180° C under 1000 psi of hydrogen for one hour. Analysis of the product mixture shows the presence of 9.3 grams of 2-methyl-1,4-butandiol (70% yield) and about 0.5 grams of 3-methyl-4-butyrolactone (4% yield).

출처 및 근거

ORD 기록
ord-b5220fa9d52240789ee45f8917821a5c
출처 데이터셋
uspto-grants-1978_05
특허 번호
US04091041

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