Sulfuric Acid → p-Menthane-3,8-diol
反応式
[CH3:1][C:2](=[CH:4][CH2:5][CH2:6][CH:7]([CH2:9][CH:10]=[O:11])[CH3:8])[CH3:3].S(=O)(=O)(O)[OH:13]>>[CH:7]1([CH3:8])[CH2:6][CH2:5][CH:4]([C:2]([OH:13])([CH3:3])[CH3:1])[CH:10]([OH:11])[CH2:9]1参加物
3
実験手順
Citronellal is treated with aqueous sulfuric acid solution of 5 weight % (hereinafter referring to wt. %) in concentration at room temperature to cause the ring closure of citronellal. Then, after the reaction product is extracted with ether or toluene, para-menthane-3,8-diol is obtained by distilling the extract under reduced pressures (J. Am. Chem. Soc., 75, 2367 (1953), examined Japanese Patent Publication 3-80138 and U.S. Pat. No. 5,298,250).
後処理
- extractionThen, after the reaction product is extracted with ether or toluene
出典と根拠
- ORDレコード
- ord-72534ecc8b2147f6ac983dfbd5066caf
- 出典データセット
- uspto-grants-1999_09
- 特許番号
- US05959161
反応ノート
読み込み中…