| 发明名称 |
Verfahren zur Herstellung von Hydrochinon-Monoäthern. |
| 摘要 |
Mono-ethers of hydroquinones of formula (I) <CHEM> wherein R represents alkyl, alkoxy-alkyl, cycloalkyl, aryl-alkyl, or cycloalkyl-alkyl, and R<1> is hydrogen or alkyl, cycloalkyl, aryl-alkyl, or cycloalkyl-alkyl, are prepared by contacting the corresponding hydroquinones with the corresponding alcohols ROH, in the presence of a catalytic mixture consisting of a) a strong acid b) a halogen or a hydrohalic acid selected from HBr, HI, I2, and Br2, and c) H2O2 in a molar amount lower than that of the starting hydroquinone. o |
| 申请公布号 |
DE3882659(T2) |
申请公布日期 |
1993.12.02 |
| 申请号 |
DE19883882659T |
申请日期 |
1988.11.17 |
| 申请人 |
ENICHEM SYNTHESIS S.P.A., PALERMO, IT |
发明人 |
CORREALE, MARIANO, BONATE SOTTO (BERGAMO), IT;PANSERI, PIETRO, BERGAMO, IT;ROMANO, UGO, VIMERCATE (MILANO), IT;MINISCI, FRANCESCO, MILANO, IT |
| 分类号 |
C07B61/00;B01J27/06;B01J31/02;C07C41/00;C07C41/09;C07C43/23;C07C43/253;C07C67/00;(IPC1-7):C07C43/23 |
主分类号 |
C07B61/00 |
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