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

HRID 372409

反応式

HRID 372409 の反応式
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

参加物

7

反応物 3

HCID 10557Methallyl alcoholHCID 12270516HCID 12270516、化合物HCID 178418361HCID 178418361、化合物

生成物 2

HCID 180532-Methyl-1,4-butanediol収率 70%HCID 98451beta-Methyl-gamma-butyrolactone収率 4%

試薬・触媒・溶媒 2

HCID 178505374HCID 178505374、化合物触媒HCID 962Water溶媒

実験手順

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).

出典と根拠

ORDレコード
ord-b5220fa9d52240789ee45f8917821a5c
出典データセット
uspto-grants-1978_05
特許番号
US04091041

関連ノート

読み込み中…