반응식
[O:1]=[C:2]([O-:11])[C@H:3]([C@@H:5]([C@@H:7]([CH2:9][OH:10])[OH:8])[OH:6])[OH:4].[Na+]>O>[O:1]=[C:2]([OH:11])[C@H:3]([C@@H:5]([C@@H:7]([CH2:9][OH:10])[OH:8])[OH:6])[OH:4]참가 물질
3
시약·촉매·용매 1
실험 절차
One mole of sodium arabinonate (188 g) in 300 ml of water was acidified on an acid cation exchange resin, giving a solution of arabinonic acid. The arabinonic acid was transformed into the γ-lactone by concentrating in vacuum the aqueous solution to about 200 ml when 300 ml of butanol is added. After a third concentration, the solution is removed from the flask with the aid of 100 ml of butanol and seeded. Crystallization begins at once and a large crop of crystals forms. The crystalline product (115 g) is collected on a filter, washed with butanol and dried.
출처 및 근거
- ORD 기록
- ord-16d94e34416b45479e241a3f72afdd3d
- 출처 데이터셋
- uspto-grants-1996_10
- 특허 번호
- US05563303
연결된 노트
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