发明名称 |
Process for the manufacture of nitrophenetoles |
摘要 |
The present invention relates to a process for the manufacture of ortho - or para-nitrophenetole. According to the invention, the respective nitrochlorobenzene is reacted with ethanol and alkali hydroxide in the presence of a catalyst system which comprises a tetramethylammonium salt of a general formula (CH3)4NX, wherein X is Cl-, Br-, HSO4- or OC2H5, and an aqueous phase. The process has several advantages such as high yields and purity, the products obtained being completely free of side reaction products such as azoxy compounds.
|
申请公布号 |
US4479015(A) |
申请公布日期 |
1984.10.23 |
申请号 |
US19830456521 |
申请日期 |
1983.01.07 |
申请人 |
GADOT, PETROCHEMICAL INDUSTRIES, LTD. |
发明人 |
SASSON, YOEL;ZBAIDA, SHMUEL |
分类号 |
C07C205/37;(IPC1-7):C07C79/35;C07C41/16 |
主分类号 |
C07C205/37 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|