发明名称 |
PROCESS FOR OBTAINING DEPHENYLETHER DERIVATIVES |
摘要 |
The invention relates to a process for the preparation of compounds of formula (I) <IMAGE> wherein R1 stands for hydrogen or the group COR2, wherein R2 stands for a straight or branched chained alkyl having 1 to 8 carbon atoms optionally substituted with phenyl, naphthyl, tetrahydronaphthyl or m-phenoxy-benzyl, cycloalkyl having 3 to 6 carbon atoms optionally substituted with one or more straight or branched chained alkyl or alkenyl having 1 to 6 carbon atoms, phenyl or naphthyl. The compounds of formula (I) are prepared according to the invention by (a) reacting esters of formula (II) <IMAGE> wherein X stands for chlorine or bromine and R2 has the same meanings as defined above with a phenol alkali metal salt and (b) if desired converting the diphenyl ethers so obtained to a specific compound of formula (I), m-phenoxybenzyl alcohol by the hydrolysis of the ester group. |
申请公布号 |
YU42413(B) |
申请公布日期 |
1988.08.31 |
申请号 |
YU19810001677 |
申请日期 |
1981.07.08 |
申请人 |
CHINOIN GYOGYSZER ES VEGYESZET |
发明人 |
HEJA G;KORBONITS D;PALOSI E;KISS P;GONCZI C;SZVOBODA I;MARVANYOS E;KUN J;SZOMOR M;SZABO G;KALLAY T;LEDNICZKY L |
分类号 |
C07C69/74;C07C27/02;C07C29/14;C07C41/00;C07C41/01;C07C41/14;C07C43/263;C07C43/295;C07C67/00;C07C67/31;C07C69/007;C07C69/08;C07C69/157;C07C69/16;C07C69/28;C07C69/612;(IPC1-7):C07C43/20 |
主分类号 |
C07C69/74 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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